and high quality. These tips are made from copper and not electroplated, easy to tin and diamagnetic, suitable for lower temperature soldering. There are total 15 shapes of soldering tips in this set and you can choose the proper for different soldering needs. Don't leave your iron running for hours and hours if you are not using it. This can make the tip get black oxide cover. Try to tin the tip as it heats. If you leave it on too long or run it too hot it will burn off the solder and go black again. These soldering tips are suitable for 936, 937, 938, 969, 8586, 852D soldering stations. Type: -free Temperature Range: 200-480° Suitable for: 936, 937, 938, 969, 8586, 852D soldering station Note: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:brass Package Contents: 15*Soldering Tips 1*Soldering Handle Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.