Scotch Restickable Squares are pre-cut clear, removable and reusable adhesive. Great for hanging and securing artwork, photos, lists, knick knacks, cards and other lightweight items on most flat surfaces, including stainless steel, plastic, concrete, glass, wood, painted walls and more. Photo safe. No need to toss, these tabs an be reused many times. Just wash with soap and water, dry, then reuse. Each pack includes 18 clear tabs, each measuring 1" x 1" .