Excellent Quality: High quality heavy duty construction, high quality stainless steel floor guides to ensure strength and durability; High quality drum made of POM material, silencer design, low sliding noise. < p> Adjustable: Freely adjustable, the distance between the two rollers meets your needs. After adjusting the screw, it can run smoothly and quietly. Flat-base surface design: Switch to a new smooth surface, the flat-base design allows the doors to not need grooves and will not damage your beautiful apartment. It is durable and works smoothly for maximum efficiency and quietness. Easy to use: Fixed to the wall with screws, the door does not need to be slotted. Adjust the position of the roller on the track to fit the door panel. No need to drill holes in the floor, it is beautiful inside and out.