Fincci 29 x 2.1 / 2.2 / 2.3 / 2.35 / 2.4 / 2.5 / 2.6-inch inner tubes are designed for mountain bikes and hybrid bikes. Made from durable butyl rubber, they offer excellent air retention, puncture resistance, and shock absorption, enhancing ride comfort and tire longevity. Each tube features a 48mm Schrader valve, the standard valve type for most bicycles, ensuring easy inflation, compatibility with common bike pumps, and a secure seal to prevent air leaks. The package includes two inner tubes, providing a practical solution for bike maintenance and replacements. Tested and certified to CE and ISO quality standards, ensuring reliability and performance. Manufactured by Fincci, a UK brand known for quality cycling components and accessories.