Detailed Product Description Name :natural inner tubeMaterial : butyl rubberWeight : 340 gColor : blackvalve : TR13size : 400-8 ( 8 inch)Price : USD 0.92 FOB QINGDAO ,CHINAPayment : T/TPackage : knitting bag ( or by customer's demand)we are a professional factory of inner tube in China, and we ensure high quality and good prestige . welcome to qingdao for purchasing.