Package Includes: Set of 4 Twin Shower Door Rollers (2 top rollers and 2 bottom rollers). Designed for 14mm glass hole compatibility; not suitable for under 12mm glass hole. Key Features: - Electroplated Design: Durable 23mm diameter wheels with a rustproof plated surface, ensuring longevity and performance. - Compatibility: Suitable for glass doors with a thickness of 4-6mm and a glass open-hole size of 12-14mm. Recommended for optimal use with 14mm holes. - Versatile Applications: Ideal for a wide range of shower enclosures, cabins, and steam bathrooms, providing seamless functionality for both top and bottom door installations. - Smooth Operation: Engineered to eliminate noise while opening the door, allowing for a quiet and smooth sliding experience. - Easy Installation and Maintenance: Designed for hassle-free replacement; simply ensure the roller size and glass hole diameter match your requirements. Usage Scenarios: 1. Shower Enclosures: Upgrade your existing shower door with these rollers to enhance ease of use and modern functionality. 2. Steam Cabins: Ensure your steam cabin doors glide effortlessly without noise, maintaining a serene spa experience. 3. Custom Shower Cabins: Perfect for custom-built shower spaces, ensuring a precise fit and smooth operation. Choose our twin shower door rollers for a reliable solution that combines strength, compatibility, and peace of mind in your daily routine.