BAKU Solder Flux Kit, your must-have for mobile phone & electronic repair! Lead-free, no-clean, high-activity formula for smooth BGA ball planting, chip rework and PCB soldering, with strong, oxidation-resistant solder joints. 3 types for all needs: syringe for precision, tube for easy use, jar for large jobs. Suitable for beginners & pros, works for all electronics, great value for repair work!