length adjustable inner/outer diametre adjustable thickness adjustable for hinges, drawers,furnitures Model No:M001Material:carbon steelSize:bore diameter:6mm Thickness:2mm Height:8mmOptions:Material: steel,copper,stainless steel,carbon steel,bearing steel(chrome steel)Size:length,hickness,diameter adjustble base on client requirmentswelcome to visit our company and factury similar products