We sell protective corrugated corners used to keep frames from scratching each other when being transported to and from shows or galleries, or when a customer take a framed piece of art home. Adjustable-depth corners fold to lock over mouldings and cover 4” X 4” (10.16 cm) of the frame corner length with three adjustable depth (or height) dimensions of 1/2” (1.27 cm), 1” (2.54 cm) or 1-1/2” (3.81 cm). To order Protective Corners, click on Accessories ( left side under Categories ). Then scroll down to Protective Corners. Check this and then Click "Search". Then choose from the three packages shown. Do Not order from this page. Price includes FREE ground shipping within the 48 cont. states.