Check the listing for details. BV Mini Bike Pump Portable Bicycle Tire Ball Air Inflator Presta Schrader 120PSI. Color: Dark Gray, Condition: New. Listed at 16.49 USD. BV Mini Bike Pump Portable Tire Air Inflator Smart Valve Compatible with Presta Schrader 120PSI | Overview BV bike mini pump is the perfect portable pump for anyone. The super compact and lightweight mini pump is the Important necessities for your road trip. Designed smart valve head let you inflate Presta and Schrader valves easily and without any air leaks. The high pressure 120 psi can meet all your need in your daily life. It comes with a bracket that mounts where a bottle cage would mount on a bike (down tube or seat tube). Securing strap is attached to mounting bracket for extra hold on the mini pump while riding. Mounting bracket is made for mounting on multiple bike frame locations (i.e. down tube or seat tube). The pump securely snaps into the mount for a snug fit. Specification Materials: Rubber, Plastic Dimension: 9.8 x 2 x 0.5 inches Weight: 5.6 ounces Max. Pressure: 120 psi / 8 bar Valve Type: Presta, Dunlop and Schrader (Smart valve, no switching needed) Color: Dark Gray Model Number: BV-GP99 Region of Manufacture: TaiwanInstructionUnlock the Presta valve nut. (No need to do this step on Schrader valve)Push pump head down vertically until you don't hear any air bleeding voice."Lever up" the pump head locker to keep the pump head stable on the valve. Pump air in without air bleeding. "Lever down" the locker then remove pump head from the valve. Detail Image