Product parameters: Material: stainless steel Color: black Size: diameter 20 mm Package list: 6 pieces hooks: 【High-quality material】 - These rotatable black magnetic hooks are made of neodymium magnets. The neodymium magnet hooks are coated with stainless steel (most rare earth metal connections). The strong magnetic hooks are plated with 3 layers of protection - Nickel + Copper + Nickel (Ni-Cu-Ni). Thus, the 20 mm diameter hook magnets resist rust and corrosion and are ideal for long-term use. 【Multifunctional rotating design】 - The rotating magnetic hook arms can move 180 degrees up and down. Made of stainless steel, the black magnetic hook arm is very strong and sturdy and will not bend in any way. Strong magnetic d20 hooks increase the efficiency of hanging items. 【Hanging capacity】 - These vertical magnetic hooks can pull 14 kg. 5 kg when the black magnetic hooks are attached horizontally. You can rely on these colored magnetic hooks to hang anything, refrigerator, kitchen towel, keys, picture, towel, indoor plants, door, jacket, cups, kitchen utensils, etc. Widely used for indoor and outdoor use. The strong magnetic hooks provide a great hanging solution for organizing your kitchen, storage room, workshop, classroom, garage, workshop metal cabinet, broom handle, refrigerator, office and even your outdoor space such as travel, cruise, holiday decoration and camping. 【Easy installation】 - These black magnetic hooks can be installed on any metal surface. Very easy installation, no tools required, wall mounting without drilling.