XIANQI Durable MaterialThe stainless steel door hooks are made of upgrade SUS304 stainless steel, corrosion resistant, water proof and scratch proof, durable for long time. Heavy DutyUpgraded waterproof 304 brushed stainless steel and top bonding power 3M adhesive pad can provide extra strength and durability. Each hook can hold up to 5kg. Easy to UsePeeling off the self-adhesive cover and then putting the hook on the smooth surface. Dont need a drill so won't hurt your furniture or wall. Please wait for 24 hours after mounting before you hang anything. Widely ApplicationSelf adhesive hooks could stick on smooth hard surface, such as ceramic tile, refrigerator door, wardrobe, marble, wood tile, ceramic ,glass, laminate etc. Not suitable for painted wall, wallpaper, drywall and rough surfaces. Otherwise it may damage the wall. color: silver size: 4.5*4.5CM product includes4*hooks