Good quality Material- These black swivel magnetic hooks are made of neodymium magnets. The neodymium magnetic hooks (most rare earth magnetic compounds) coated with stainless steel. The 20mm diameter hook magnets are rust and corrosion resistant and are ideal for long-term use. Mufti-functional Rotating Design- The swivel magnetic hook arm can move 180 degrees up and down. Made of stainless steel, the black magnetic hook arm is very strong and sturdy and will not deform under any circumstances. The powerful magnetic hooks increase the efficiency of hanging objects.. Hanging CapacityYou can rely on these colored magnet hooks to hang anything, fridge, dishcloth, key, board, towel, indoor plants, door, jacket, cups, kitchen utensils, etc. Good Helper on OrganizationThese sturdy magnetic hooks are widely applicable for indoor and outdoor use. The strong magnetic hooks provide incredible hanging resolution to organize your kitchen, storage locker, workshop, classroom, garage, metal workshop cabinet, broom closet, fridge, office, and even for your outdoor use such as cruise travel, holiday decoration and camping. Easy Installation - These black magnetic hooks can be placed on any metal surface. Very easy installation, no tools required, wall mounting without drilling. Specification: Shape: Hook Color: Black Diameter: 20mm Material: Neodymium Magnet and Stainless Steel Package: 6 Pack Advantages of Strong Magnetic Hooks: No drilling holes No sticky residue No bolt or screw Easy to install or remove Reusable Wide Application: Home Use: Hang potted plants, towel, garden tools, barbecue tools, pots and pans, curtain hook, door catch, broom closet. A catch for garbage or laundry bags, clothes, curtains or decorative lights on a metal ceiling and many other possibilities. Industrial/Exhibition Use: Hold banners or awning, temporary signage and hanging ceiling wires, metal cabinet workshop, etc. Cruise Cabin Use: - Hang uniforms, secure equipment from moving or shifting, set up temporary signs, or hold luggage. A bag, coat, laundry lines for cruise travel. Commercial Use: Hang various types of work tools on your workshop/garage shelf. Office Use: Hang files on filing cabinets, steel door frames. Locker/Classroom Use: Unlimited uses in school and gym lockers and classroom whiteboards. WARNING! KEEP AWAY FROM CHILDREN, THIS IS NOT A TOY. Please keep them away from your cell phone, ID card, your bank card and other magnetic items, otherwise it will make these items demagnetized.