Ball bearing slides Size: Various sizes are available. Application: Kitchen cabinets, office or home furniture drawers and computer keyboard drawers. Ball bearing slides material: Work hardened cold rolled steel Load capacity:25kg/450mm,45kg/450mm Thickness of material: 1.0mm*1.0mm, 1.0mm*1.2mm,1.0*1.0.1.2mm,1.2*1.2*1.5mm Finish: electro-zinc plated with clear or color chromate, black chromate Available.