No need drilling. In bathroom, in kitchen , in refrigerator and any smooth, non-porous surface can apply it. Real stainless steel metal material and plating ABS plastic suction cup. Reuse and no surface damage. Please check your wall style before choosing this product. Feature - ColorSilver - Material: 304  Stainless steel.  - Size: 5.6 x 4.8 x 3.8cm. Style: Double hook. Maximum load: 5kg. - No need drilling to hurt your wall, suitable for smooth tile wall. - In bathroom, in kitchen , in refrigerator and any smooth, non-porous surface. - Real durable stainless steel metal material and plating suction cup. - Reuse and no surface damage. Please check your wall style before choosing this product. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 4 x Hooks