Desoldering Wick, Braid Number 4, Braid Width 0.11 in, Spool Length 10 ft, Color Blue, Lead Content Lead-Free, Bobbin Type ESD-Safe, Flux Type Rosin, Flux Classification ROL0, Features Non-Corrosive Ultra High Purity No-Clean Flux, Patent Pending, Rohs Compliant, Transfers Heat to the Solder Joint More Quickly and Efficiently Than Conventional Desoldering Braids, Manufacturer Series Name Soder-Wick Lead-Free, Standards DOD-STD-883E, IPC J-STD-004, Method 2022, MIL-F-14256 F, NASA-STD-8739.3