uto strt/stop ignition esily ignites nd extinguishes flme, Swirl flme provides hot efficient flme for lrge dimeter soldering brzing nd het treting, For best results use with MP-Pro fuel such s the Bernzomtic 14.1 oz. MP-Pro Hnd Torch Cylinder (Included), Cst luminum body construction for durbility, Pressure regulted for consistent performnce when tilted or momentrily inverted Run-lock button keeps torch lit for continuous use, Limited Lifetime Wrrnty, Includes:, 2x Mp-Pro Gs Cylinders Suitble for Propylene & Propne fuel Lock button keeps to rch lit for finger free use Instnt on/off trigger igniter with sim ple one-hnded opertion Cst luminium body for durbility Swirl flme provides hotter more efficient flme Brzes 1/ 16 1_ (1.58 25.4mm) Copper Pipe Solders 1/8 3_ (3.175 76.2m m) Copper Pipe Idel for medium to hevy soldering & brzing Flme temperture in ir = 36 degree F (1982 degree C),