PRODUCT SPECIFICATION: 20 pacs (40 units), measuring 2.4 x 2.4 inches.EASY TO USE: Remove the back of the protective film and stick one side to any smooth surface and the other side to the flat surface where you need to hang the object.HEAVY DUTY APPLICATION HOOKS: Removable wall hooks are waterproof, oil resistant, durable and long lasting. The unique transparent design makes them virtually invisible and perfect for home decor.SELF-ADHESIVE HOOKS: Double-sided wall hooks avoid holes and nails, use them in pairs.WIDE APPLICATION: Self-adhesive hooks are widely used in bathroom, outdoor final intervention, kitchen, plugs, trash cans, toilet brushes, flower pots, pictures and other decorations.