This is a soldering iron tip sleeve set, which is mainly made of copper material. It has high hardness and strong oxidation resistance. It can serve you for a long time. It will be your good choice of sets. It is made with excellent craftsmanship, complete configuration, convenient replacement, and can well meet your needs. It will be your good choice of welding accessories. Features -Color: Silver. -Material: Copper. -Size: About 6.60X2.00X2.00cm/2.59X0.79X0.79inch. -Specifications: I+ +1C+ + 0.8D+1. 1.6D+2.4D+IS. -Made of sturdy and durable copper, with high solder joints and good heat resistance, it will be your good choice for soldering iron tips. -Complete configuration, easy to install and apply, designed to facilitate your welding work. -Small and practical, professional and efficient, can be used for welding small electronic components, circuit boards, etc. -Fine workmanship, excellent texture, safety and durability, and . -It is easy to install and disassemble without complicated tools. It is a very professional welding kit. Package list: 1 x socket 12 x soldering iron tips