Command Picture Hanging Strips Mega Pack makes decorating quick and easy - no more nail holes, cracked plaster or sticky residue. One click tells you Picture Hanging Strips are locked in and holding tight. Best of all, when you are ready to take down or move your pictures, they come off cleanly - no nail holes, cracked plaster or sticky residue - for damage-free hanging. Set include 28 pairs (12 medium and 16 large). Each medium strip set holds 3 lb. Each large strip holds 4 lb.