
Functionality : resistance to corrosion and corrosion resistance. rust, it has good overall performance. bearing capacity of the pulley, good stability ; Small coefficient of friction, less noise, more durable. Easy installation, often used for bathroom sliding glass door pulley/track. Specifications: >Type: Shower Door Roller Material: Nylon Roller + Copper Core Size: Wheel Diameter: 25mm Suitable for door of shower from 4 & 6mm thick Package includes:4 x Shower Door Rollers Note: Please measure dimensions for best fitment before purchase. Please expect slight errors due to manual measurement. Thank you for your understanding.