Features Good Material: Using premium ceramic and copper materials, these tools have excellent durability for long term use. Welding Accessory: Used for TIG welding and arc welding of pipeline, and can weld carbon steel and some low alloy steel. Practical Use: Suits perfectly for 9 and 20 series air cooled welding gun as well as 25 series water cooled welding gun. Easy to Install: Designed to have a compact size and a light weight, the installation is very simple to complete. 4Pcs in 1 Set: 2pcs pink bowl shaped ceramic nozzle, 1pc 2.4mm gas lens and 1pc 2.4mm oblique mouth electrode clamp. Specification: Item Type: TIG Welding Accessory Product Material: Ceramic, copper. Application: Suitable for WP-9 20 25 argon arc welding gun. Pacakge Includes: 2 x Pink Bowl Shaped Ceramic Nozzle 1 x 2.4mm Gas Lens 1 x 2.4mm Oblique Mouth Electrode Clamp Package List: 2 x Pink Bowl Shaped Ceramic Nozzle 12#   1 x 2.4mm Gas Lens 1 x 2.4mm Oblique Mouth Electrode Clamp 2 x Small Storage Box Note: Pay attention to safety and use carefully. Package List 2 x Pink Bowl Shaped Ceramic Nozzle 12# 1 x 2.4mm Gas Lens 1 x 2.4mm Oblique Mouth Electrode Clamp 1 x Storage Box