Fixing electronics or making PCB repairs? You need a good desoldering pump (aka solder sucker). This pack comes with THREE of them, so you can keep one on every bench or share with friends. It's a simple, manual tool: you push down the plunger, heat the solder joint with your iron, then press the button—the plunger springs back and creates a vacuum that sucks up the molten solder. Cleans out through-hole components nicely. Made from aluminum alloy and ABS plastic, it's lightweight and durable. The design works for both right and left hands. Each one is about 7 inches long. They have decent suction power and are easy to clean. A must-have for anyone who does soldering work, from beginners to pros. Having a few extras is great because the tips can wear out or get clogged over time. For the price, this 3-pack is a fantastic value. Get those old components out cleanly!