Command 20 lb XL Heavy Duty Picture Hanging Strips, 16 Pairs (32 Command Strips) Damage-Free Hanging Picture Hangers, Heavy Duty Wall Hanging Strips for Home Decoration, Black Adhesive Strips About this item Sold as 16/pack. Includes - 16 pairs of extra large black Command heavy weight picture hanging strips (32 strips total); 4 XL strips hold up to 20 lbs. Maximum frame size 24" x 36". Damage-Free Decorating - No more worries about holes, marks, or sticky residue on your walls. 3M Command heavy weight picture hanging strips are easy to use and keep your walls beautiful. No Tools Needed - Hang sturdy picture frames, large wall art, large mirrors, wall clocks, signs, whiteboards, holiday decorations, acoustic foam boards, and other home decor where you want without nails or a hammer. Strong and Versatile - Command strips adhere strongly to a variety of indoor surfaces including painted walls, painted concrete block, and concrete surfaces. (3)