It is strong suction and compact size design that make this hook can be firmly attached to your wall or flat surface and is easy to install. Thanks to corrosion resistant and smooth feature, it can be used for a long time and will not hurt your hands when using it. This hacker is made of high quality stainless steel and PVC material. The diameter of the hook is 2.5cm. It is suitable for bedroom, hallway, bathroom, kitchen and so on. Item Name: Suction Hook Material: Stainless Steel, PVC Features: Decorative, Punch Free, Easy Installation Size Details: Diameter: 2.5cm/0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. When the ambient temperature is low, the hook will also become hard, and the suction cup will restore the suction power when it is coated with water or blistered, and the suction will be firm. Package Includes: 20 x Sucker 20 x Hook