How to use solder gas MT-100: To refill, hold refill can as pictured (fuel transfer is dependent upon gravity). Observe fuel level in transparent window and stop when 90% full. Ignition sequence: Push the on/off adjuster upward toward tip to release gas and turn to mid position. Then, holding the unit away from face and body, activate with the ignitor or regular lighter. Adjustment: The tip temperature can be adjusted by turning the on/off adjuster. Normally set the on/off adjuster forward to mid position when soldering or brazing. It is not necessary for the tip to glow bright red to achieve satisfactory soldering temperatures. Experience will dictate the adjuster setting required. Excessive gas flow, flare-up, or pulsing red may occur if the regulator is incorrectly adjusted, i.e., set too high. Color: As shown in picture Material: ABS + metal Package Contents: 1 x Gas Soldering Iron 1 x Stand with Sponge 1 x Solder Tube (63/37 tin/lead, 1.8% Flux, 1.0mm Dia, 0.5oz) 6 x Solder Tips 1 x Rosin 1 x Scraper Only the above package content is included; other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.