Full Extension Slide,Drawer Slide,Ball Bearing Slide : Quick Seperation Mechanism to Prevent Drawer From Springing Out. Full Extension Slide,Drawer Slide,Ball Bearing Slide :1.Material: Cold-rolled Steel Plate2.Width: 17mm3.Finish: Blue Zinc- Plated, Color Zinc-Plated,Black Zinc-Plated4.Products Features: Quick Seperation Mechanism to Prevent Drawer From Springing Out. Full Extension Slide