General description 12pcs 23mm Shower Door Rollers designed for smooth operation of glass shower doors. These multifunctional rollers ensure a comfortable glide for various types of shower doors, including those for massage showers, bathtubs, whirlpools, and even furniture fittings. Technical specifications Roller diameter: 23mm Hole diameter: 5mm Thickness: 5.5mm Screw size: M4*20mm Compatibility and accessories Includes 12pcs screws Compatible with different types of shower doors