These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in solid and two-hole versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.
These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in one-hole and solid versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.
These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Each stopper has its size marked in raised figures. Sold as one-pound bags.
Hollow, soft, lime glass. Uniform in size and quality. For general lab use. Cut in convenient 24 inch lengths.
These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in one-hole and two-hole versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.
These high density polyethylene powder funnels feature wide short 20mm stems.
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Material: Top Outside: Stem Length: Capacity: |
HDPE 65mm 20mm 35ml |
Polypropylene 85mm 30mm 100ml |
Polypropylene 125mm 40mm 300ml |
• Concealed under brim technology
• 2 LEDs pointing outward for distance applications
• 2 LEDs angled downward for close and medium task applications
• 48 lumens of light output - twice the light output of any lighted cap on the market.
• 43 hours run time.
• 13 meters forward lighting.
• 4 way switch
• Solid colored cap, 100% polyester fleece. 97% polyester/3% spandex.
• Four replaceable lithium CR-2032 batteries.
• One size fits most.
Concealed under brim technology takes lighted headwear to a new level of functionality. Now the POWERCAP Stealth 2575 has expanded on this technology to provide the market with the most advanced lighted cap ever. 4 way switch available again. When you click the button, two lights turn on, click again, two different lights turn on, click again, all 4 lights on, click again, all 4 lights turn off. Delivers twice the light output of any lighted cap on the market. 4 ultra-bright LEDs: 2 LEDs pointing outward for distance applications and 2 LEDs angled downward for close and medium task applications. 48 lumens of light output. 43 hours run time. 13 meters forward lighting. Adjustable hook and loop tape closure. Solid colored cap, 100% polyester fleece. 97% polyester/3% spandex. Four replaceable lithium CR-2032 batteries. One size fits most.
• Combines Ultra Bright LED technology with ANSI rated yellow safety material
• The perfect hands free flashlight.
• Yellow microfiber hat with reflective grey trim that let’s you be seen from all angles
• Perfect for walking or working at night
• 4 LED’s provide more than 48 Lumens and are concealed under the brim
• When you do click the easy on/off switch under the brim, you’ll notice that
• 2 LED’s are angled down 25 degrees to light up your hands for close up tasks
• 2 LED’s are aimed forward to light the distance up to 42 feet away.
• 4 CR2032 Coin Cell batteries are hidden in the sweatband and are easily replaceable
• 43 hours of battery life
POWERHAT LED Lighted Safety Hats Combine Ultra Bright LED technology with ANSI rated yellow safety material to provide you with the perfect hands free flashlight. The Yellow microfiber hats have reflective grey trim that let’s you be seen from all angles. Perfect for walking or working at night, you can rest assured that you will be easy to see. The 4 LED’s provide more than 48 Lumens and are concealed under the brim so the hat looks just like any other hat until you need to turn them on. When you do click the easy on/off switch under the brim, you’ll notice that 2 of the LED’s are angled down at 25 degrees to light up where your hands are for close up tasks, while the other 2 LED’s are aimed forward to light the distance up to 42 feet away. 4 CR2032 Coin Cell batteries are hidden in the sweatband, provide up to 43 hours of life and are easily replaceable.
They can start with basic math operations and work their way up to more advanced concepts such as percents and square roots. This dual-powered, four-function calculator includes auto shut-off, 3-key memory and more. Measures 4 1/2" x 2 1/2" Grades Pre K +
This fluorescent white armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
This fluorescent yellow armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
The Project Planetarium is ideal for individual study projects. Causes of 2 day and night, seasonal changes, phases of the moon, and planet locations are easily understood. The small planetarium model and solar system chart, 22"x17", may be set to show actual positions of the earth, the moon and planets at any given time. Each set includes planetarium, chart and study guide.
Pulley is high-quality impact-resistant, chip-proof injection molded, balanced wheel. Smooth, clean V-groove. Wheel diameter 2", 360 degrees swivel hooks-top and bottom. All steel blocks.
Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.
Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.
Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.
Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 6" x 9" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Replacement Belt for Van de Graaf Generator
Replacement Belt for Van de Graaf Generator
Surgical stainless steel, No. 22, will fit handle (11452).
Replacement bulb for microscopes with halogen illumination. 15W, 6V
Replacement bulb for microscopes with halogen illumination. 15W, 6V
• Comfortably covers the nose & mouth
• Protects from airborne pollution, dust, pollen, and other particles
• Measure 7" x 3 3/4" (approx.) when folded and expand to 7" by 6 3/4" (approx.)
• Around the head elastic for a snug comfortable fit
• Made from 100% cotton material
• Has an overlapping opening in the back to insert a filter (not included)
• Reusable and machine washable
• Available in white, and shades of pink, brown & blue (color may vary slightly)
• Made in USA
• One size fits most adults
These reusable, Cloth Face Masks comfortably cover the nose & mouth for protection from airborne pollution, dust, pollen, and other particles. The masks measure 7" x 3 3/4" (approx.) when folded and expand to 7" by 6 3/4" (approx.) They're made from 100% cotton material with an overlapping opening in the back to insert a filter (not included). Machine wash and air dry. Can be ironed (avoiding elastic). Available in white, and shades of pink, brown & blue (color may vary slightly). Has an around the head elastic to hold the mask snugly in place. These masks are made in USA. One size fits most adults.
NOTICE: These masks are considered an improvised form of personal protective equipment (PPE), and do not meet the standards of FDA cleared devices designed and tested for this purpose. They are not intended for treatment or prevention of illness, and by purchasing them the customer acknowledges and accepts this. Masks are not returnable, due to health and sanitary reasons.