The clean use high quality copperwas good at clear tin don't tin and is valid clear the tips oxidation. 1 * Welding Tips Cleaner. Please allow slight dimension difference due to different manual measurement. The tips or the components surface have oxidation ,is hard to use tin and soldering. Use the the can quikly rid the oxidation, make the become easy soldering. The is scaling powder, can help soldering. Soldering tip cleaner contain high quality , good for the circuit board soldering. It can rid the tips oxidation film, to avoid oxidation and reduce surface tension of the little tips. Box size: 66*40mm. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Material: copper clean , . The product main advantage was of the tips didn't , the black tips will be bright after clear, it makes the tips use longer, copper clean don't need to use water clean, it didn't down the temperature of solder tips, replace of the sponge, is the - solder tips using a good helper, the soldering tips cleaner cleaning effect better than traditional clear sponge. Since it does not contain water, cleaning the tip to maintain tip without loss of heat, it does not cause thermal , thereby reducing the loss of the tip. Color: As The Picture Shows. Due To The Light And Screen Setting Difference, The Item's Color May Be Slightly Different From The Pictures. Material: Copper Clean , . The Clean Use High Quality Copperwas Good At Clear Tin Don't Tin And Is Valid Clear The Tips Oxidation. Soldering Tip Cleaner Contain High Quality , Good For The Circuit Board Soldering. It Can Rid The Tips Oxidation Film, To Avoid Oxidation And Reduce Surface Tension Of The Little Tips. Please Allow Slight Dimension Difference Due To Different Manual Measurement.