Product:Portable Bicycle Inflator Size:2.28*15-24.5cmMaterial:Carbon fiberTechnology:CNC，laser logo， aluminum oxideColour:BlackNet weight:Approx.75gCapacity:7bar，100psiInflating valve:Schrader valve and Presta valve Packing:Pump*1pcs，bracket*1pcs，rubber ring*1pcs，screw*2pcsFeatures:The material is Carbon fiber.It's only 75g.The biggest attraction is the design of valve.The pump is default to Schrader valve，but it only take few seconds that can change into Presta valve.All you have to do is rotate.Besides，this pump has a flexible tube which is hidden.It is more convenient for inflating the tire.There is a rubber ring to fixed the pump on your bike except the 2 pcs screws and 1 pcs bracket.