Material: Durable ABS plastic for longlasting performance and reliable support. Package Contents: 12 pairs of shelving sleeves, ensuring you have enough for multiple posts or replacement needs. Compatibility: Designed to fit most shelving units with 3/4 inch (19 mm) diameter posts, providing a secure, snug fit. Key Benefits: Protects and stabilizes shelves by securely holding them in place. Easy to install without tools, reducing setup time and effort. Maintains proper shelf alignment to prevent wobbling or uneven surfaces. Practical Applications: 1. Ideal for replacing worn or damaged sleeves in home pantry shelving systems to restore stability. 2. for warehouse storage racks where strong and consistent shelf support is required. 3. Useful in office or retail shelving setups to ensure products are safely displayed and organized. Whether you need to existing sleeves or install shelving, these ABS sleeves deliver consistent, dependable performance. Their precise fit for 3/4 inch posts makes them a versatile choice for a wide range of shelving systems.