Shower door rollers: 4 x 23 mm rollers (2 upper rollers, lower rollers, 2 lower rollers). Installed on the upper and lower edges of the shower doors. Roller material: The roller is made of ABS and zinc alloy. It is durable. Roller set: Each roller is equipped with from one cover to another; screw. It is easy to push and clean. Glass hole size: suitable roller; For glass thickness: 4-6mm, glass opening: 12-14mm. Applicable scene: These shower door rollers are suitable for; In most shower rooms, it is convenient to open and close the shower door. Features: Material: ABS + zinc alloy Quantity: 4 pieces (two upper rounds, two lower turns) Size: wheel diameter: 23mm, glass thickness: 4-6mm, or glass size: 12-14 mm Features: Durable material: The coil is made of ABS with zinc alloy. It is strong and shiny. Roller accessories: The roller is attached; Fastened with screws and covered with a rubber cap. Screws, which makes it beautiful and easy to maintain. clean. Scope of application: The roller is suitable for flat shower doors and round sliding doors. Scope of delivery: 4 x shower door rollers Tips: />If you have any questions, please do not hesitate to contact us. Contact us.