2pcs Adjustable Floor Rails Sliding Door Floor Roller Rails

EASY TO SLIDE: Smooth bearings can slide easily and then slide the door easily. The floor rails are flat on the bottom without damaging the door, and the floor slides smoothly and quietly.The door doesn't need a groove, just attach two screws to the bottom rail, and the roller rails are held in place. No need to drill holes in the groundDURABLE AND PREMIUM MATERIALS: 100% heavy duty carbon steel and nylon rollers with black coating to resist abrasion and last longer. Make sure the floor rails can be used indoors and outdoors without rusting.Sliding door floor rail rollers with 8 setting views. No need to waste your precious time looking for different design options and struggling with which one will work best.Colour:blackMaterial:steelPackage Contents:2 * sliding railOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.