This extra finely braided, pure copper wicking braid absorbs molten solder. Wick is coated with non-activated, white rosin flux (meets MIL-F-14256F, type R) that leaves no corrosive residues.
25 Foot spool
Length: 25 ft width: 0.110; application: large pads color: blue flux type: rosin lead-free solder compatible: no length 1: 25' rohs compliance: yes size: #4
Chemtronics brand product
50-4-25 Series product