Used along with the solder sucker to clean up soldering messes. Wick really comes in handy when soldering or desoldering surface-mount parts. Even if you don't have the best iron for SMT work, a bit of wick will fix it up.
This is thinner, SMT-friendly 0.8mm wick, and 1.5m long, so you have plenty to work with.
We also carry solder wick with 1.5mm width (try saying that 5x fast!)