Concealed Mounting Brackets：Can be used for DIY or custom ledges, completely hidden in walls and boards, simple and fashionable, to make your home more beautiful and tidy. Material：The inside of the floating shelf bracket is made of iron, its housing and expansion tube are made of plastic. It is fine workmanship, sturdy and durable. Dimensions：The total length is 175mm, the expansion tube length is 75mm, the diameter is Ø12mm, and the support rod length is 100mm, the diameter is Ø10mm. High stability：The support rod is a hexagonal cylinder with barbs, which increases the obstruction of the board and improves the stability. Strong load-bearing：The load-bearing capacity of the wall-mounted shelf bracket is very strong. If it is properly installed on a suitable fixed brick wall, the bracket can bear about 20kg. Color: brown Quantity delivered: 6 pieces