Instructions:
1. First, press the lead suction piston down until it gets stuck.
2. Heating solder joints to melt the solder with an electric soldering iron.
3. Remove the iron and quickly put the tin suction gun on the solder joints, then press the button.
4. If it is not clear at once, you can operate it repeatedly for as many times as it takes to be clean.
Package List:
2pcs x Soldering Suction Pump