Note: The color is according to the first picture,the quantity and size are according to the title,if the title is not clearly written,according to the . Our products Features: For precise dosing. Suitable for solar panels,as well as for SMD soldering work. Flux flows smoothly for consistently secure and uniform solder connections with no mess. Non-corrosive,non-conductive,moisture resistant,and fungus resistant. Easy operation and easy to carry Length: approx. 140mm Notice: 1. Apply flux to the parent material before soldering (improve the wettability) 2. By applying flux to the object at the time of correction,the wax can be removed and the wettability can be improved. 3. The substrate can be cleaned with a solvent such as alcohol (no organic solvent is allowed) 4. Objects may have Logo,if you want to know,please . Otherwise,please do not bid. includes:Choice 1: 1 x Soldering Rosin Flux Pen Choice 2: 2 x Soldering Rosin Flux Pen Choice 3: 4 x Soldering Rosin Flux Pen