When your Transport Chair or wheelchair seat or back cushion is damaged, you don't need to buy a new Transport Chair. You only need to replace it with a new seat or back cushion so that you can use it again. The replacement is very simple and requires no special tools. You only need a Phillips screwdriver to complete the installation and save you costs. When the seat or back cushion of your wheelchair or Transport chair is cracked, there is a risk of breaking and causing a fall. It is recommended that you replace it. We have a variety of styles for you to choose from. Please be sure to confirm the mounting hole spacing before purchasing to ensure a perfect match. 18”Seat Upholstery Compatible with the K1 and K2 wheelchairs of most brands on the market, compatible models: BLS18FBD-ELR, BLS18FBD-SF, M170-5-118ELR, M170-5-118SF, SSP218DDA-SF, SSP218DFA- SF, SSP218DDA - ELR,SSP218DFA - ELR, SSP118FA-SF,etc. It has the same size as the part number: STDS3J2418 Consistent. ForconMed is a company specializing in the production and sales of repair parts for medical rehabilitation products. The company offers a wide range of accessories for wheelschairs, rollers, knee walkers and medical rehabilitation products. Save costs for users and make your products look brand new.