?Hanging Adhesive Strips?: Picture Hanging strips (20 Pairs/40 Pack, L2.6in x W0.8in) can replace nails or liquid adhesives. Wall hanging strips are backed with high-quality adhesive backing, compared with ordinary double-sided adhesive, stronger adhesion. 4 pairs wall hanging strips can hold up to 13.2 lb, perfect for photos, artwork, or Christmas decorations without damaging the wall. ?Works On Most Smooth Surfaces?: Summerbrite Wall hanging strips work on a variety of smooth surfaces, including painted walls, finished wood, painted concrete cinder blocks, laminate, tile, glass, marble, metal, wood, and plastic. Not suitable for wet or rough surfaces. ?Removes Cleanly And Quickly?: To remove the universal hook and loop strips, simply hold the top of the removable adhesive strips and pull it slowly and straight toward the ground. There will be no residue on the flat surface for perfect removal. ?Damage Free Hanging?: The flat surface of used wall hanging strips will not be damaged after removal, leaving any holes, marks, or sticky residue, and will not prevent the flat surface from being used again. Perfect choice for renovating or organizing your space. ?Easy To Use?: Clean the surface first and keep the picture hanging kit dry when using. Stick two picture hanging strips together, then stick the Picture Hangers to your target object, finally stick to a flat surface, press firmly and it will work properly. ?Usage Tips?Wait seven days after painting before using the picture hanging strips to allow paint to cure; do not hang over beds or on wallpaper; do not use the wall hanging strips to hang valuable items