Product Description The - Lightweight and recyclable Specifications:Application:KidsETRTO:32-254 to 40-254Tyre Dimensions:14 x 1.25" to 14 x 1.5"Inner Tube Material:butylValve Type:AV / Schrader 40 mmDimensions (ETRTO):14 x 1.25 (32-254)14 x 1.35 (35-254)14 x 1.40 (37-254)14 x 1.50 (40-254)Valve InformationTubes are available with various valve types. Choosing a valve is dependent on application and the rim's valve hole diameter. AV / Schrader Valve: Synonyms: Auto Valve (AV), Schrader ValveOuter Diameter: 8.5 mmModels:14 x 1.25-1.5 AV / Schrader 40 mm Valve Type:AV (Auto / Schrader valve)Valve Length:40 mmType:AV2CManufacturer Number:10461840Technology:Tube Recycling All Schwalbe tubes are one hundred percent recyclable. In order to maintain the quality of recycled butyl rubber, Schwalbe has developed its own devulcanization process and has been using it successfully ever since. Today, every standard Schwalbe inner tube is made from approximately 20% recycled material. Contents:1 x Weight: universal | 32-254 to 40-254 | Schrader Valve (AV) | 14 x 1.25-1.5 AV 40 mm | 40 mm: 72 g Manufacturer: Ralf Bohle GmbH Otto-Hahn-Str. 1 51580 Reichshof Germany info@schwalbe.com