Solid (Flat-Free) Urethane Wheelchair Tube Inserts - Monster Scooter Parts
Wheelchair Seat Reducer Inserts
Amazon.com: Flat Free Rear Wheels for Wheelchair for 16-18-20 Inch Wheelchairs, Wheelchair Wheels Replacement with Bearings and Handrim, Wheels for Healthline Drive Wheelchairs, Solid Black (Set of 2) : HEALTHLINE: Health & Household
Amazon.com: Solid Inserts for Wheelchair Tires (24 x 1 3/8) : Health & Household