YunSCM 2-PCS 20" Bike Tubes 20x1.75/2.125 Schrader Valve 20" Bicycle Tubes Compatible with 20x1.75 20x1.90 20x1.95 20x2.0 20x2.10 20x2.125 Bike Bicycle Tire Tubes

SIZE: 32mm Schrader valve (Regular valve) 20" x 1.75-2.125 Fit 20-inch wheel

MORE DURABLE: The bike tube is made from premium butyl rubber. It features better sealing performance, ozone resistant, anti-aging, shock absorption and electrical insulation merits

Easy To Install: Installation is quick and easy. Please follow inflation guide when airing a tire from a complete flat. Hassle free to replace your old tire tubes within minutes which is time saving and efficient

Safe Bike Tires: The butyl rubber tire tube replacement absorbs shocks on bump road for a comfort and safe ride. It is heat resistant and stands wear and tear for daily use

Tip: Before installing the inner tube, please put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged, you can contact us. Check the valve position to ensure that the installation direction is correct. Note: The inflatable inner tube should avoid puncture by sharp objects.