Scotch Indoor Double-sided Mounting Squares are ideal for painted surfaces and allows you to quickly and easily beautify and organize your space. Whether you’re creating a gallery wall or affixing the family chore chat, these permanent double-sided foam squares holds up to 2.2 kg and delivers a strong bond every time because of its 3M industrial strength adhesive. Your work is up and ready to admire in 30 seconds flat – no nails or hammer needed. Permanent. Ideal for painted surfaces. Intended for indoor use – delivers a strong, permanent bond on contact. Designed for: Painted drywall, finished wood, metal, acrylic, tile and glass. Holds up to 3.6 kg with 3M industrial strength adhesive. To hold 453 grams use 3 squares. To hold 2.2 kg use 15 squares. Easy-to-apply design with no mess or tools. Use instead of nails and screws. 25x25mm size. Pack of 16.