[Product specifications:]compatible with for 700X35-38-40-42-43c bicycle tire tubes[MORE DURABLE] The bike tube is made from premium rubber. It features better sealing performance, ozone resistant, anti-aging, shock absorption and electrical insulation merits.[Product Information:]Weight: 170G/piece, Long Schrader Valve: SV48MM/A/V48L[Practical accessories] suitable for Most of Bicycles Wheels. Rim Strip are stronger and have better anti-puncture effect[Safe Bike Tires] The 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.Material:rubbercolour:blackPackage Contents:2 * Bike Inner TubeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.f