1Inner tube, replacement for Schwinn roadster tricycle, fit for 10in bike, 3 wheel trikes and baby strollers, 10in wheel electric scooter, gas scooters and mobility scooters. 2Pair of 10x2in inner tube is perfectly fit for 10x1.90, 10x1.95, 10x2, 10x2.125, 10x2.25in tires. 3This inner tube is made of rubber, which is better in air tightness, elastic damping and aging resistance than natural rubber. 4Inflatable inner tube with 90 bent angle valve stem and a cap. High puncture resistance, extra secure welded seams. 5When installing, please be careful that the tire lever can easily puncture a hole in your inner tube. Check for any signs of protruding beads and inner tubes on both sides of the tire.