More Durable: Our 26x4 bike tube is made of high-quality butyl rubber material with good heat resistance and air tightness. And each bike tire tube has passed strict quality inspection to ensure ...

Instantly seals punctures up to 1/8" as you ride. Tube Weight - 340g Valve type & length: Schrader; 40mm with valve core cap Great for Cruiser and Mountain bike tires ...