Weight: about 15g per piece. Length: 4 inches approx. 10.16cm. Maximum weight supported: approximately 10 kg. Material: Sturdy metal steel. Black color. The large size is 10.16 cm long and the diameter of the openings are 1.27 cm and 3.6 cm. S-shaped, no need to glue or use screws. Great for kitchen utensils and can be applied on the wall to organize kitchen utensils such as pots, pans, mops, spoons to save a lot of space in the kitchen. These hanging hooks are also suitable for use in a closet, storage room, bathroom, garage, workshop or office where space is limited. Just hang them on a pot rack, wall rails or shelves. The small crease at one end fits well and firmly on the brackets; and the other wide end is great for holding items. Use in the kitchen, for pots, cups, gloves, etc. Use in the garden, for plants, tools, bags, etc. Use in the bedroom, for jeans, scarves, caps, belts, etc. Use in the bathroom, for towels, bath bombs, clothes, etc.