Features 1、Supports high adoptability, floating shelf bracket with fine workmanship is strong and durable. 2、Easy installation of concealed shelf support can be used to fix your book shelf board tightly. 3、For steel and plastic cover, shelf support is durable and compact and its simple design suits any type furniture. 4、Mount in easy way, knock the product with expansion pipe into the wall, drill the wood board, then fix the product with the drilling holes of board. 5、Withstand heavy objects without deformation and bending depends on shelf support's strong load-bearing capacity. Specification Item Type: Concealed shelf support Bracket Length: Approx. 145mm / 5.7in Expansion Pipe Length: Approx. 72mm / 2.83in Bracket Diameter: Approx. 10mm / 0.4in Expansion Pipe Diameter: Approx. 12mm / 0.47in Single Weight: Approx. 64.47 g / 2.3 oz Whether Removable: Removable Package List 10 x Wall Shelf Support