Gobrico 22-Inch Heavy Duty 100 Lb. Full Extension Ball Bearing Drawer Slides Soft Close Rail Runners 2Pair Mounting:Side Mount, Material:Cold Rolled Steel,Finished Color:Zinc Plated Length:22inch,Thickness:1/2"(12.7mm),Width:45mm.Load capacity:78 Pounds/35KG Ultra smooth soft-close function. Continuous bearings ensure smooth and quiet performance 4 drawer slides(=2 pairs),screws included.Rear-mounted brackets NOT included For any quality problem,we will refund or send replacement.Please contact us through message