These premium RubberMaster Radial Passenger Inner Tubes are made from top-quality rubber for long-life durability, air tightness and resistance to aging and high temperatures. Premium Rubber Construction: RubberMaster Passenger Inner Tubes are made from the finest, top-grade, heavy-duty butyl rubber to be high-performing and air-tight, with unparalleled leak prevention and wear-resistance. Assured Quality: Each tube is meticulously tested at the factory to guarantee it’s free of defects to promote a long service life, while ensuring strength, durability, and resistance to cracking and cuts. Renowned Brand: A brand synonymous with quality and reliability. Valve Stem: TR13
