Material: Shower door rollers made of plastic, BS nylon and stainless steelCarrying elements: The rollers in the shower and hydromassage rooms ensure that the door can slide forward or back easily and smoothly. They perform their tasks perfectly, distribute the weight of the glass and control the movement in the desired direction.Waterproof Coating: As the shower room uses a special super waterproof lubricant with PTFE, the life of the roller is extendedSliding: The sliding door wheel kit allows the door to slide and saves strength, keeps the door in balance, prevents shocks and ensures stability.Easy to install: the bathroom slide rail is easy to move and install, it can also move the door to save space, more beautiful, suitable for most shower rooms, shower rooms and steam rooms