The Micro Torch is an excellent torch for beginners and students, and works just as well as a professional jeweler's torch without the heavy tanks. It runs on butane, is refillable, has automatic ignition, and is portable and lightweight. You can use it on the included base or hold it to work at angles with ease. It can be used for soldering jewelry metals, firing PMC clay, and enameling. It has a 2500 F flame and up to 90 minutes of continuous burn time. The flame is adjustable and also has a safety lock and a continuous flame lock for convenience. Measures 5.5 x 4.0 x 2.0"? (14 x 10.5 x 5 cm). This torch comes with an instruction sheet, as well as instructions printed on the torch itself. Use extreme caution during and after ignition. Keep out of reach of children. Butane is not included and must be purchased separately.