Specifications: Color: black Material: S304 stainless steel Hooks Size: 4.5*4.5cm Back: self-adhesive Moisture-proof, Waterproof, Oil-proof No drilling, No tools, No Screw Package Includes: 8pcs Square Hooks Easy to Remove: Heat the hook with a hair dryer, then slowly remove it from the side without leaving a trace. Warning： 1. Do not hang overweight, expensive or fragile products. 2.Do not use in too low temperature environment (lower than 41℉ ). 3. Not suitable for drywall, wallpaper, painted walls and rough surfaces.