Brand new with high quality Ceramic heating core 220v electric soldering iron heating core Material:Ceramic Style:Short Wire/Long Wire Power:60W/80W/100W Size:60x3.8mm Quantity:1/2pcs Preparation: 1. always keep the tip clean, be sure to liberally coat the bit with solder the first time the iron is turned on. Note: initial tin is made in order to prolong the life of the bit. 2. wet the provided sponge before using. 3. check that the solder wire is ready for use and properly extended from the case as shown in step 1 in the illustration above below. 4. make sure that the bit fits comfortably and has proper contact with the inner element. How to weld: How to change / replace bits: Using the soldering iron 1. after turning on the iron, the bit will start to heat up and be ready for use when the solder wire starts to melt on contact. 2. Start the weld by ensuring the melt weld makes a clean connection between the contacts you are trying to weld. 3. move the solder wire and iron away once enough solder is placed and clean all residual solder using the wet sponge. 4. always remember to unplug the iron from the mains and place it on the provided support while cooling enough to be safely stored. Grades: 1. Wear safety and take necessary precautions to avoid injury or fire. 2. the iron heats up quickly. Select a suitable temperature to operate at. Using the iron for long hours and at a high temperature can shorten the product's life. 3. be sure to connect only the iron when necessary and unplug it when not, in order to reduce the risk of injury and fire. 4. clean the soldering tip always so often to extend its life. Avoid using chemicals and abrasive surfaces, as this could damage the metal surface. 5. The bits provided are 900m series and spare parts are available from where you purchased this product. Package Include: 1pc or 2pcs electric soldering iron heater Notice: 1.1cm=10mm=0.39inch. 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.