Features: Material: ABS Scope of application: tin removal Maximum suction: 32 (cm-Hg) Black color Size: As the picture Instructions: Put the tin vacuum cleaner plunger down to get stuck. Heating the solder joints to solder the fusion with an electric soldering iron. Remove the iron and quickly place the solder from the resistance paste of the tin suction cup, solder the suction cup and press the button. If it is not clean at the same time and can be repeated several times. Use skills: To ensure proper sealing of the welding cup piston. Before the electricity, with your fingers to plug the solder cup head, the solder cup head to press the button, if the plunger is not easy to put in place, the seal is good. Aperture tin suction heads are of different sizes, please select the appropriate specifications. The tin suction head wears out, need to replace the new one. The solder paste is soaked in a little rosin before contact with the solder to improve the fluidity of the solder. The contact pads of the head are slightly longer, when the solder bottom, the solder joint pin as the center, then distribute clockwise to draw a circle, then press the tin suction cup button. Package content: 1pc x Desoldering Pump