Flat Tire Defender Tube Defender - 2.4 to 2.8 - 2 Pack TD2.4/2.8-2

Tube Defender - 2.4 to 2.8 - 2 Pack
Designed for bicycles using inner tubes, Provides a protective barrier between inner tube and tire tread/sidewall, Protects against inner tube pinch flats, Made of high quality high-density closed-cell polyurethane foam, Provides up to 14mm protection in tread area, Provides up to 4mm protection in sidewall area, Smooths out rough terrain; increases traction, One length * cut to fit wheel sizes 26*, 27.5* & 29*, Easy to Install, May require narrower inner tube to compensate for reduced tire volume * not included with purchase