Command Black Large Picture Hanging Strips let you decorate how you want, when you want, without damaging your walls and surfaces. A great home improvement item, these picture hangers stick on a variety of smooth surfaces without leaving holes, marks or sticky residue. Use these wall hanging strips to hang picture frames, college dorm decor, wooden letters, nursery decor, calendars or even to create a gallery wall. Simply mount these no tools picture strips on painted walls, finished wood, painted concrete cinder blocks, laminate, glass, metal and tiles and enjoy the damage free hanging of your favorite decorations. Perfect for home renovators and college students, use these Command Picture Hanging Strips in your home, office, apartment or dorm room to elevate the appearance of your living or working space without tools. Directions are included; follow the directions closely to use the wall hanging strips as intended. Prior to mounting, clean the surface with rubbing alcohol to allow the wall adhesive strips to maintain a strong bond with the surface. Lightly hold the top of the removable adhesive strips and slowly pull them straight down towards the floor to remove and prevent surface damage. A clever decorating solution that doesn't damage surfaces, these picture hanger strips will help you fearlessly change your space. One package contains 4 pairs of large black picture hanging strips. Material: Plastic.