The Weller ML100 is a 2400°F Magna-Lite Butane Micro Torch with Key Ring, Butane Not Included. The ML100 features a Piezo Electronic Ignition System for Reliable Ignition Every Time, a Blue Led Light that Illuminates Work in Dark Conditions, an Adjustable Flame Height, a Nozzle Cover that Prevents Accidental Ignition, a Child safety lock that meets CPSC guidelines, a Key Ring Lanyard, and is refillable with Weller Wb1 or Wb2 Filtered Butane.