Durable MaterialInvisible floating shelf bracket made from high quality and durable material;the interior of the invisible floating shelf bracket is made of iron,and the case and expansion tube of the invisible floating shelf bracket are made of plastic,these material is finely crafted and durable. Hexagonal DesignFloating shelf support bracket is designed with a hexagonal shape,the load-bearing rod of floating shelf support bracket is a hexagonal cylinder with barbs,which increases the resistance very well,and does not shake,strong load bearing and stability;internal metal structure also ensures the bearing capacity. Concealed Shelf BracketsHidden bracket with brown color,looks natural and invisible enough and blend in when supporting board or floating shelf in your kitchen, lounge, bedroom, bathroom, or whichever room;solid and sturdy design,ingenious design creates the illusion that your shelf is floating. Strong Load-BearingFloating shelf bracket with size of 0.55 in x 5.5 in(diameter x length) is bigger than other floating shelf brackets,which means these shelf brackets has a stronger load capacity when fitted correctly with appropriate fixings into good condition solid brick type walls,or into the studs in hollow cavity walls,and the capacity of the floating shelf bracket is enough for your holding needs. Practical Support BracketThe package contains 10 pcs floating shelf brackets;the quantity is enough for wall decoration or floating shelves or your other needs;these floating shelf brackets are designed for practical use and usually used for diy or custom wood floating shelf,bookshelves,completely hidden in walls and boards to save space, making your home more beautiful and organized. DESCRIPTION: Concealed bracket is made from high quality and durable material iron and plastic,very durable and sturdy;its hexagonal shape increases the resistance very well,and does not shake,strong load bearing and stability;internal metal structure also ensures the bearing capacity. SPECIFICATION: Material: Iron & Plastic Length: 5.5 Inch(140mm) Diameter: 0.55 Inch (14mm) Color: Brown Quantity: 10 PCS FEATURES : The material of concealed shelf supports brackets heavy duty is iron and plastic,which are very durable and sturdy for long time use. The support rod of floating shelf brackets is a hexagonal cylinder with barbs, which increases obstruction to the board and improves stability. Usually used for diy or custom wood floating shelf,bookshelves,completely hidden in walls and boards to save space, making your home more beautiful and organized. Invisible shelf bracket is very suitable for wood panels, cement walls. INSTRUCTION: Firstly,measure the hole spacing,and drill the hole in the wall(consistent with the hole spacing of the plank). Secondly,insert the expansion end of the pin into the wall hole and tighten it clockwise. Then,drill the hole of the corresponding size on the side of the board(same of the hole spacing on the wall). Finally,insert the board to the plank support rods.