Description : 16 39 ; 39 ;/ 12 39 ; 39 ;/ 20 39 ; 39 ;/ 26 39 ; 39 ; 700c bike AV inner tube with Schrader Valve cap fits for e - bikes , road bicycles , folding bikes Made of high quality butyl rubber material - soft , perfect airtightness and durable 34mmx8 . 37mm Dia . schrader valve with cap , antirust , leakproof and durable The rubber tire tube replacement absorbs shocks and you won ’ t feel the bumps Please check the side wall markings on your tire and the model & amp ; size of your old bike inner tube valve ( schrader valve ) before ordering . Specification : Size : 16x1 . 35 - 1 . 5 12x2 . 125 26x1 . 95 - 2 . 125 20x1 . 75 - 2 . 125 Package Includes : 1 Piece Bike Inner Tube