Features:
Made of butyl rubber， durable and wear-resistant.
High air tightness， needn't waste too much time on pumping tire frequently.
Designed with American valve， easy to pump tube up.
Suitable for tube specification of 26 * 1.9/2.125.

Specifications:
Material: Butyl rubber
Color: Black
Type of valve: American valve
Inner tube thickness: 0.73mm
Product size: 26 * 1.9/2.125 in (diameter * width)
Product weight: 146g / 5.1oz
Package size: 7.5 * 6 * 9.5 / 3 * 2.4 * 3.7in
Package weight: 165g / 5.8oz

Package List:
1 * Bicycle inner tube