Decorate how you want, when you want without damaging your walls. Command Picture Hanging Strips let you fearlessly hang pictures without nails or tools. Not just for picture frames, these wall hangers are also great for hanging art work, college dorm décor, wooden letters, acoustic foam boards, and more. These innovative strips click together to lock in place and keep your pictures level. The adhesive strips hold strongly on a variety of surfaces including painted drywall or painted concrete cinder block, finished wood (painted or varnished shiplap, cabinets, or doors), laminates, glass, tile, metal, and other smooth surfaces. When you're ready to redecorate your space, the Command Strips remove cleanly, with no sticky residue and no damage that you may get from using picture-hanging hardware. Details: Black 4 pairs holds 16 lb. (7.2 kg)Maximum frame size of 24" x 36" (60cm x 90cm) Includes 12 pairs of large picture hanging strips