Material: Full metal Dimensions: L 20 x 20 x 3 cm, thickness 4 mm 4 x long screws, 4 x short screws (the wooden board is not included) Important note: we provide expansion screws and long screws. Choose expansion screws (max load: 300+lbs/pair) or long screws (max load: 140+lbs/pair) depending on load requirements. Why choose this bulkhead bracket?< br/>1. Unique Decoration: Your shelf bracket can not only support your storage space, but also add visual appeal. 2. High resilience: made in solid metal 4 mm thick, very resistant thanks to; the stable triangular construction. 3. Extra storage space: in combination with wooden brackets and shelves, the floating shelf support helps to create more wall space for storage or gifting in any space. 4. Multiple installation methods: various combinations of different styles to meet your needs. your various crafts. Widely used; : Use these racks in the living room, kitchen, bedroom, bathroom, children's room. room or office to place books, shoes,