martHead(TM) works with Presta and Schrader valves without swapping parts. Dual action doubles volume with each stroke.HeadSmartHead(TM)BarrelAluminumThumb LockAluminumHandlePlastic/KratonCapacity120 psi/ 8 barAdded FeaturesDual Action PumpingSide Mount BracketSize (L x W x H)23.1 x 4.7 x 3.2 cm 9.1" x 1.9" x 1.3"Weight150 g / 5.28 ozArt.no.TMD-2