Part of Wheelchair 3.00-4 (10x3) Is Mainly Used For The Wheels Of Electric Wheelchairs and Electric Scooters. Its Tire Consists of Two Parts: Rubber Outer Tube, Microcellular 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.We can also custom the wheels as per ur requirment
link:http://www.pu-tire.com