100 - 1" squares perfect for making flat lightweight items magnetic! Magnet holds up to 1 pound craft item on contact with a flat, smooth ferrous steel, without layer of material between magnet and steel. Adhesive bonds to clean, smooth and uniform surfaces made of paper, wood, cardboard, laminated paper, whiteboard, photos, plexiglass, and tile. Adhesive covered by peel-off liner is on non-magnetic side. 100 - 1" squares perfect for making flat lightweight items magnetic. Magnet requires direct and full contact with steel for maximum hold.