5pcs/Set BEST Original Welding Nozzle Oxygen-free copper Solder Iron Tip Lead-free Solder Non-stick tin Tip 900M-T-IS Tool Kit Features : The tips are for horns and plastic 1.99.9% pure copper ,long life. 2.Good heat conduction, heat fast 3.Environmental friendly Product List :(5pcs/Set) 1PCS 900M-T-I 1PCS 900M-T-IS 1PCS 900M-T-SK 1PCS 900M-T-K 1PCS 900M-T-3C