The 10 Inch Airless Wheelchair Wheels Is Mainly Used As The Wheels Of Electric Wheelchairs. And Mobility Scooters. Its Tire Consists of Two Parts: Rubber Outer Tube, Microlar Polyurethane Elastomer Filled or Inserted inside. The Brand Of Rubber Tires mainly is Cheng shin Or Innova. Its Max. Loading Is About 75KGS per Wheel.