Features: * Easy to carry: portable and very suitable for outdoor work. * Reliable material: the iron soldering tip is made of copper, steel, which is stainless, serving you for a long time. * Application: suitable for general soldering applications, spot, line and pull soldering, tinning wire.* Easy to install: This iron coreless soldering bit is with thread, easy to remove and install. Specifications:* Product Name: Soldering Iron Tip* Material: Copper, Steel* Color: Silver+Gold* Size: (Approx.) 50mm/1.97 inch* Tip Type: Tip-B, Tip-C, Tip-K* Suitable Applies to: Soldering iron tip with E10 interface* Quantity: 6 pcs Package includes: 6 x soldering tips Note: 1. Transition: 1cm=10mm=0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.