Feature :: -Sturdy metal construction and coated with high-temperature painting to resists corrosion and stains. -Our stainless steel cup hooks are right for closet in your kitchen or tea room in your office and even great for bar. -These nail free hangers are great for cups, kitchen wares, keys and sponges, brushes and so on. -They are durable and multifunctional, and these mug holders are also a closet organizer storage for ties, belts, scarves and hand bags. -Easy installation, it just slides right over your existing shelf or cabinet. No scratching or damage to your cabinets. - Due to the rack is made of iron which have ductility, it may bend if it is overloaded. If you want to fix the rack firmly, you could fix the rack on the board with screw.The product is not equipped with screw.