- Contents you will receive: soldering iron head cleaning paste x 1; 2015 tin absorber wire 2.0 mm - 1.5 mm x 3; tip cleaning balls (with canister) (without label) x 1; rosin 50 g (1 box) x 1; soldering iron head cleaning sponge x 5; black stick flat tip pen x 3 - High purity rosin flux: acid free solder flux with strong welding force, high connection intensity, low residue, stable performance and low volatility; long use cycles; non toxic and no irritating smell - Deep cleaning effect: brass wire sponge for soldering iron tip cleaner penetrates deep to remove all residue, ensuring a shiny, like new tip each time - User friendly: designed for any welding enthusiast and practical in use; simply dip the tip into the hot tip cleaner, clean in seconds and continue your project - Use scenarios - Electronics hobby projects and PCB assembly requiring clean, well tinned tips - Repair and rework of small electronics and prototype work - Regular workshop maintenance for hobbyists and professionals