... :cold-rolled steel 4,reasonable price and excellent quality 45mm 3-fold Ball Bearing Slide Width:45MMThickness:1.2*1.2*1.5mm ... zinc-plated,color zinc-plated,blackMaterial:cold-rolled steelWE HAVE 3 THICKNESS RANGER FOR CHOOSE.NO. 1 2 3A 1.0MM ... ;1.0/1.0/1.2mmOptional balls1,2,3,4 ballsWe have 1,2,3,4 balls for your option.If you ...