These shelf brackets are made from high quality steel, black coated finish, durable and sturdiness.triangle shape structure of stable right angle, easy to make level and wobbles.installation is quick and easy.Shelf bracket can be used as bookshelf, kitchen shelf, exhibition stand, garden shelf, external wall brackets etc.Max. Load: Approx. 30KG/66Lbscolour:blackMaterial:stainless steelsize:Thickness: 2mm/0.08inchHole Dia: 5mmBracket Size:20 x 12CmPackage Contents:12*Heavy Duty Shelf BracketOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.