Features ALUMINIUM ALLOY MATERIAL: Made of high quality aluminum alloy material, the case is durable, sturdy, rosy and easy to clean and works well. The workmanship is exquisite and the service life is long. Areas of application: suitable for conventional air pump hot air desoldering stations and universally applicable. Compatible with the 850 series hot air welding station and air pump. FIXED CONNECTION: the nozzle can be tightly locked with locking screws to effectively prevent hot air from flowing out of the space between the nozzle and the air ss steel pipe of the heat gun. Easy to carry: these nozzles are small and lightweight and can be easily installed for convenient use. Pack of 6 The pack contains 6 nozzles in sizes 3mm, 4mm, 5mm, 7mm, 8mm, 10mm. Check the size for fine and detailed work! Specification: Item Type:Heat Gun Nozzle Set Material: aluminium alloy. Basic parameters: Diameter of the blow opening: approx. 3 mm/0.12 inches, 4 mm/0.16 inches, 5 mm/0.2 inches, 7 mm/0.28 inches, 8 mm/0.31 inches, 10 mm/0.39 inches. Package list: 6 x nozzles. Package List 6 x Nozzle