Feature 1This kit fits all WP-9 or 20 or 25 series torches. 2Provides welders with extraordinary view and comfort during the welding process. 3Specially designed for precise welding and small jobs where you need to see the position very clearly. 4Can help to make the welding gas flow uniform, which can help improve the welding quality. 5Can save at least 30 percent of gas compared to ordinary ceramic shield cups 6They are widely compatible with the original universal spare parts of TIG torches. 7Easy to assemble, you just need to push the transparent protective cup to make it firm and seamless to install.Item Type: TIG Welding KitOptional Model: 1.6mm, 2.4mm, 3.2mmMaterial: Glass, copper, rubberApplicable Object: for WP9, WP20 argon arc welding torch Package List: 1 x TIG Collet 1 x Insulated Glass Cup 3 x High Temperature Resistant O-Ring 1 x 3 or 32in Brass Chuck 1 x White Plastic Ring