4 pcs. New Welding Kits Hot Air Nozzle in Different Sizes for 850 Hot Air Welding Accessories Welding NozzlesFeature: Locking screw that can lock the nozzle tightly, effectively preventing hot air from escaping from the gap between the nozzle and the steel air outlet pipe. Features: Compatible with 850 series and air pump type hot air soldering station. Suitable for many kinds of hot air soldering station, exquisite workmanship, with long service life. Easy replacement, versatility, high-quality stainless steel, durable. Specification:Shape:RoundMaterial: Stainless SteelDiameter: Round 3/5/6/7/8mm Packing List:3mm Extended Air Nozzle With Elbow Nozzle*15mm Elongated Air Nozzle With Elbow Nozzle*16mm Elongated Air Nozzle With Elbow Nozzle*18mm Elongated Air Nozzle With Elbow Nozzle*1