The inner tube from Schwalbe is a quality product with a car and a length of 40 millimeters. With a weight of 95 grams, this inner tube fits 20-inch tires with a width of 28-406, 32-406, 35-406, 37-406 and 40-406. The inner tube is made of high-grade butyl material, which ensures longer air pressure duration compared with other inner tires. The inner tube of Schwalbe is also highly elastic and adapts to many tire sizes, making it a versatile choice. This product is 100% recyclable and has been used reliably for many years. Valve type: Auto / Schrader Valve length: 40 millimeters Weight: 95 grams Tire sizes: 28-406 - 20 x 1 1/8 32-406 - 20 x 1 1/4 35-406 - 20 x 1,35 37-406 - 20 x 1 3/8 40-406 - 20 x 1,50 28-406 - 20 x 1,10 The inner tube from Schwalbe is a reliable choice for bicycle retailers. Material and production guarantee high reliability and longer air pressure duration. The inner tube is suitable for various tire sizes and is completely recyclable.