Clean the walls or glass. Tear the glue on the back. Attach the sponge holder and press firmly. It's better to wait 24 hours hanging things. Colour: A: silver Material: stainless steel Size: 49x49mm Package Contents: 5 * Shelves Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.