Weller WLACCBS 02 Soldering Brass Sponge Tip Cleaner 5 Pack Non Abrasive Brass Coils for Residual Solder Removal and Tip Life Extension Dovetail Bit Carbide Height 3 8 in Carbide Height 3 8 in By reducing the risk of insulation chipping and cracking preventing "re contamination" of the tip and ensuring the brass retains its ability to grab oxidized residue Model Number WLACCBS 02 Quantity 5 sponges Material Non Abrasive Brass Coils Cleaning Method Dry Waterless Compatibility All Soldering Iron Tips Recommended Use Solder Removal and De oxidation Maintenance Type Replaceable Insert Primary Benefit Eliminates Thermal Shock Function Prevents Tip Cool Down Safety Non Slip Design Pro Tip: To maximize the effectiveness of your brass sponges