This is a manual suction cup to effectively remove solder when repairing and soldering electronic components. It can be used to correct errors with small boards on circuit boards and other circuit board components. Compact and portable to carry. Features: Nylon tip is high temperature resistant and replaceable, easy to clean and carry, suitable for long-term use. ABS plastic shell is sturdy and durable; The sponge-covered handle is non-slip and comfortable to grip. Compact and portable to carry. Double-layer air-leakage protection, good airtightness; with a powerful spring, the suction power can reach up to 35 cm-hg. Easy to use: press the tin suction control button and push the plunger to down at the same time to remove the solder seal. Greatly improve work efficiency. Rebound Button: Push the plunger of the desoldering pump tool all the way until it gets stuck; quickly approach the tip of the tool to the solder joint and press the tin suction control button as you move your soldering iron; repeat for better desoldering effect. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thank you for your understanding. Features: Color: black and green Material: ABS Max. Suction power: 35cm-hg Item size: 208*21mm/8.19*0.83in Package size: 25*6*3cm/9.84*2.36*1.18in Package weight: 150? g / 5.29 oz Package list: 1 * manual desoldering pump