Can be modified to fit custom tanks and/or be set to determine amount of reserve gas available with any custom gas tank Stainless steel internal ball bearings provide virtually friction-free petcock handle motion 90? movement between each detent ensures positive transition when riding Manufactured from 360 brass and stainless steel ball-bearings and components Features detents for quick, effortless switching from "On" to "Reserve" to "Off" Valve position firmly held in place and unaffected by vibration Made in the U.S.A.. PETCOCK NPT STRAIGHT BRS