Command, 12 pack, medium, white picture hanging strips, no more nail holes, cracked plaster or sticky residue, make decorating quick & easy, 1 click tells you picture hanging strips are locked in & holding tight, when you are ready to take down or move your pictures they come off cleanly, no nail holes, cracked plaster or sticky residue, hold most 18″ x 24″ frames, value pack contains 12 sets.