Features:

1.Used between the steel ring and the inner tube to prevent the spokes from piercing the inner tube.

2.It can make the tire pressure higher, the tire resistance is small.

3.Made of high quality material, which is durable and toughness .

4.Installs easily between the tube and tire to offer powerful puncture protection

5.High tensile strength and easy installation

6.Provides physical barrier to block nails, thorns, and other debris on some degree. Not for Strong Sharp Nail or Blade .

Specification:

Material: PVC (more flexible than nylon, more convenient to install)

Packing:2pcs/Set

Size:

700C*18mm wide (Road Bike / Fixed Gear Bicycle)

26 inch * 20mm wide (MTB)

27.5 inch* 20mm wide (MTB)

29 inch * 20mm wide (MTB)