Command Picture Hanging Strips Mega Pack makes decorating quick & easy – no more nail holes, cracked plaster or sticky residue. One click tells you Picture Hanging Strips are locked in & 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 & 16 large). Each medium strip set holds 3 lb. Each large strip holds 4 lb.