16x2.125 Tire Inner Tube with Bent Valve for E-Bike, 16 Inch Rubber Bike Tube...
Included Components: 16x2.125 inner tube. Like for RoyalBaby, Joystar, Dynacraf and Revolution SE/Pro/Flex/SU/Ironman. [Heavy Duty Tire] The inner tube is made of butyl rubber. Thickened design. Highly elastic, non-slip, and wear-resistant.