Material: These screw in hooks are made of high-quality zinc alloy which is rust-proof, scratch-resistant and durable. Dual Hooks Design: The robe hanger with double hooks design can hang more things and save space. The style of retro hook is fully compatible with your home decoration. Wide Application: The small metal hooks can be used to hang clothes, hats, towels, bags, keys, umbrella, cups, etc. It can be installed anywhere: bedroom, bathroom, closet, entrance and office. It is recommended to install on solid wood or wooden surfaces, such as back of the doors, furniture, and wooden board. Size: The dual clothes hook size is 53 x 41 mm/ 2.09 x 1.61 inches. The length of the screw is 18mm/0.71 inches,which makes the hook deeper into the board for stability. Package Included: 10 pcs double door hooks and 30 pcs screws. One coat hook only needs two screws. 30pcs screws are enough to meet demands.