SQXBK 4PCS U-Shaped Wheelchair Rail Sliders Universal Wheelchair Accessories Plastic Removable Armrest Mounting Rails Fits 7/8-inch Tubing Black

["The product is made of high-quality engineering plastic and is sturdy and durable.","The product is suitable for installation on 7/8-inch ferrule tubing; seat rail: 19 mm.","This product primarily provides stability and enhanced comfort for your wheelchair seat.","This product is compatible with most transport chairs and wheelchairs.","Package contents: 4 U-shaped wheelchair rail sliders"]