PS-4507ball bearing drawer slide 45mm Full Extension Ball Bearing Drawer Slide 1:Feature:full extension2:size:8"-48"3:Material: Work hardened cold rolled steel4:Mounting: Side, for frame and frameless construction5:Load capacity: 45kgs/450mm6:Finish: Electro-zinc plated ; Color chromate ; Black Chrome7:Thickness: 1.2/1.2/1.5mm ;1.0/1.0/1.2mm8:The installation gap: the installation gap between rail is 12.7+/-0.1mm9:Option: 1" over travel