ITEM NAME:8pcs Soldering Station 850 Hot Air Gun Welding Heat Resistant Nozzles Product Description Description: Specification: Nozzle Type: 3/4/5/6/7/8/10/12 mm Adapter Inlet Diameter: approx. 22 mm Color: Silver Material: Heat Resistant Aluminum Alloy Note: This product is not suitable for handheld hot air guns. Included: 1X 3mm Nozzle 1X 4mm Nozzle 1X 5mm Nozzle 1X 6mm Nozzle 1X 7mm Nozzle 1X 8mm Nozzle 1X 10mm Nozzle 1X 12mm Nozzle.Material: Heat Resistant Aluminum Alloy. This product is not suitable for handheld hot air guns. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.