If your a serious racer then this would be a essential item to have to reduce pit time. This Fuel Gun is the exact same design as the Kyosho gun, probably the same just a different color. the purple anodized is a nice feature that matches my Novarossi engine, and the craftmanship is very good. To use you just need to load the gun up with fuel by drawing it up, and with a push of the trigger it pushes all the fuel into your tank without splashing out. Its a very simple concept but also technicle design at the same time. Save time on the race track with this fuel gun and save money!!!!!