Continental Tour 28 700x32-47c Bicycle Inner Tubes with 42mm Presta Valve (Pack of 2 Tubes) Continental bike tubes are constructed of durable butyl rubber and are 100 percent inspected to ensure quality. The tubes are seamless and vulcanized for uniform roundness and improved reliability. Material: Butyl tubes with renowned Continental quality Durability: Each and every inner tube passes a stringent 100% quality control inspection Design: Seamless construction, with a mold-cured vulcanization, to ensure uniform roundness and give a smooth ride and handling.

New in Factory Packaging. Contents: 2 Continental Inner Tubes. Valve type: 42mm Presta Valve. Size: 700x32-47mm / 28x1.5-1.75". The Tubes have a seamless construction, with a mold-cured vulcanization, to ensure uniform roundness.