ITEM NAME:8pcs Round Nozzle for 850 Hot Wind Air Gun Welding Heat Resistant Solderi EDG.Specifications: round nozzle 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Material: Stainless steel. Color: picture color.