Feature:* * This kit fits all WP-9/20/25 series torches.* Provides welders with extraordinary view and comfort during the welding process.* Specially designed for precise welding and small jobs where you need to see the position very clearly.*Can help to make the welding gas uniform, which can help improve the welding quality.* Can save at least 30% of gas compared to ordinary ceramic shield cups.* They are widely compatible with the original universal spare parts of TIG torches.*Easy to assemble, you just need to push the transparent protective cup to make it firm and seamless to install. Specification:Item Type: TIG Welding KitOptional Model: 1.6mm, 2.4mm, 3.2mmMaterial: Glass, Copper, RubberApplicable Object: For WP9, WP20 Argon Arc Welding TorchPackage List:1 x TIG Collet1 x Insulated Glass Cup3 x High Temperature Resistant O-Ring1 x 3/32in Brass Chuck1 x White Plastic Ring