The wheelchair seat rail guides and support blocks are crafted from sturdy plastic, providing a reliable solution for wheelchair maintenance. These components are easy to install, making them ideal for quick repairs or upgrades. They help to keep the seat securely in place, ensuring a comfortable and safe ride for the user. Features -Color:Black -Material:Plastic -Size:4.30X2.80X2.10cm/1.69X1.10X0.83in -Note: Fits 7/8 Inch Tubing. Seat rail guide - 19mm in diameter. -sturdy construction: the wheelchair seat rail guide is built with sturdy materials, ensuring performance and reliability for everyday use -Easy maintenance: the plastic clip design allows for quick and easy maintenance, making it simple to keep the wheelchair in top condition -Improved stability: the high load bearing design of the seat slider enhances stability, providing a safer and more secure seating experience -Universal compatibility: the unique design adapts to multiple wheelchair models, making it a versatile choice for different users and settings -Enhanced comfort: the wear resistant plastic block reduces noise and friction, providing a more comfortable and quiet ride for the user Package list: 2 x wheelchair sliders