Set of 8 zinc alloy shower door rollers

8 Pack Zinc Alloy Shower Door Rollers - Double Rollers (4 Top Double Rollers + 4 Bottom Rollers). Wheel Width: 5mm. Max Glass Thickness: 6mm. Includes: 4 Top Rollers & 4 Bottom Rollers - Mounting Hole Diameter: 12mm. USE ANYWHERE: Shower door slides for showers, massage rooms, bathtubs, whirlpools, and even furniture accessories. Ensure the door or doors open easily and smoothly. Replace faulty systems with high-quality ones Rolling components: the smooth movement of the shower door slightly forward or backward, the hydromassage cabins clearly fulfill their assigned task, distributing the mass of the glass, controlling the movement in a given direction. This makes the product more durable and lasts longer.