Description If you are looking for a bike inner tube you're in a right place! Our tubes are made of strong rubber, so it'll definitely last longer than average ones. Moreover, our test result shows it has an amazing sealing performace, so you don't have to worry about the air leaking from the tire. Also, it functions well in shake absorption, making sure that you're safe and comfortable when riding. Features - Color: Black. - Material: Rubber. - Size: 41.00 x 41.00 x 1.00cm/ 16.11 x 16.11 x 0.39 inch. - Made of source material, good acid resistance, wear resistance, toughness and good fatigue resistance. - Practical and durable, easy to use. Long service life design, make you use it freely and easily. - Fit with most kind of kids bike or kids road bike use. A good gadget for yourself to repair your kids' bike. - Easy to install and maintain. Puncture and wear resistance which will prevent outside damage effectively. - High class rubber material produced with sturdy structure for durable and long-lasting use. Made of source material, good acid resistance, wear resistance, toughness and good fatigue resistance |Practical and durable, easy to use Long service life design, make you use it freely and easily |Fit with most kind of kids bike or kids road bike use A good gadget for yourself to repair your kids' bike