【Excellent Quality】High quality heavy duty construction, high quality stainless steel floor rails to ensure strength and durability; High quality POM material drum, silencer design, reduce sliding noise. 【Adjustable】Adjustable at will, the distance between the two rollers meets your needs. After adjusting the screw, it can run smoothly and quietly. 【Flat Base Surface Design】Upgrade it to a new smooth surface, the flat base design allows the doors to not need slots and will not damage your beautiful floor. It is durable and runs smoothly for maximum efficiency and silence. 【Easy to Use】Mounted to the wall with screws, the door does not need grooves. Adjust the position of the roller on the rail to fit the door panel. No need to drill holes in the floor, it looks beautiful inside and out.