Command Strips Double-sided Adhesive Picture Hanging Strips Self Adhesive Features: -The backing of the wall-mounted adhesive strip is made of high-quality adhesive, which has stronger adhesion. Four pairs of adhesive strips (eight strips) can hold up to 16 pounds. -Can be removes cleanly without leaving holes, marks or sticky residue on a variety of surfaces. -Can work on a variety of smooth surfaces, including painted walls, glass, tile, metal, laminate, plastic, finished wood, etc. But do Not recommend for use on wallpaper, fabrics, textured walls, brick, or other rough and non-stick surfaces. Before use, clean the desired surface with rubbing alcohol to remove grime and dust. -Can hang picture frames, wall art, mirrors, wall clocks, signs, power strips and other home decor where you want without nails or a hammer. Specification: Colour: white Size: 16*29mm,16*46mm,20*46mm,16*70mm,19*92mm,38*38mm Material: blended+double-layer adhesive Package Included: 12 Pairs of wall-mounted adhesive strips