Our Swivel mount Sign Frames for retractable belt stanchions enable setting and locking the frames in 8 different viewing angles. These exclusive Beltrac post frames are the best in the industry. They feature radius corners, eliminating sharp edges near your customers for safety and sleek design. Each frame includes twin clear acrylic panels designed to accept regular 8 1/2" x 11" printed paper. Choose between a slotted frame top for easy graphic change or a fully enclosed frame for more tamper proof signs or advertising display.