Usage Tips:Type: 4 Piece Shower Door Roller Wheel Thickness: 5.5mm, come with screws, suitable for 4-6mm thick shower door. ROLL DIAMETER: 20mm, inner hole: 5 mm, fixed with M4 screw. : The pulley is made of copper and POM wheel, and the screw is made of stainless steel, corrosion and rust resistance, it has good comprehensive performance. BEARING COMPONENT: Pulley bearing capacity, good stability Small coefficient of friction, good mute effect. APPLICATION ANYWHERE: Shower door slides for showers, massage cabins, bathtubs, whirlpools and even for furniture fittings. Make sure that with our slides the door or doors open easily and smoothly. Replace shower enclosure rollers in your broken system. Replacement Shower Door Roller Type: 4 Piece Shower Door Roller. Wheel Thickness: 5.5mm, come with screws, suitable for 4-6mm thick shower door. Roller diameter: 20mm, inner hole: 5mm, fixed with M4 screw. The pulley is made of copper and POM wheel, and the screw is made of stainless steel, corrosion and rust resistance, it has good comprehensive performance. Sheave bearing capacity, good stability Small coefficient of friction, good mute effect. Easy installation, often used for bathroom sliding glass door pulley/rail. Measurement (before taking an order) Package Contents Our shower door rollers use pure copper rod, which effectively improves the load-bearing capacity, suitable for various types of shower enclosures, to ensure your door has the most comfortable sliding. Measurement (before taking an order) Wheel thickness: 5.5mm, come with screws, suitable for 4-6mm thick shower door. Roller diameter: 20mm, inner hole: 5mm, fixed with M4 screw. Package Content 4pcs Shower Door Roller 4 M4 stainless steel screws Suitable for bathroom doors Suitable for bathroom doors Shower door fixing pulleys are suitable for most shower enclosures, shower enclosures, shower enclosures and steam rooms, installed at the top and bottom of the shower door, easy to open and close. It is a good helper for bathroom sliding doors. Packaged quantity: 4 pieces Product color: white