and high quality: 900M--I, B, K, 1.2D, 1.6D, 2.4D, 3.2D, 2C, 3C, 4C, a of 10 pieces.Uses: This product is suitable for 936 soldering station,soldering station or all kinds of 900M series dedicated handle.Production of high-grade oxygen-free copper, solder joints of not less than 20000,Suitable for lead-free soldering, are high-end products,Heat transfer fast, long life, easy on the tin, will not produce Weld,Head of the choiceShould be with their own soldered dot look at the size of solder jointsConventional welding head: I B K 3C 2.4DColor: silvermaterial: metalSize: casing length: 65mmPackage Contents:1 x Iron casing10 x iron tipOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.