Use to support items like doors and dowels to keep them off the ground while you're painting. Paint the top of your project, turn over while still wet and paint other side. No waiting to dry and no more paint lines on your floor. Interlock to support unwieldy items and they can be maneuvered into multiple positions depending on the shape of the item being painted. They can also be screwed down for additional security. Each pack includes 10 pieces.