Specifications:This kit is easy to assemble and use. It helps to make uniform gas flow for welding, which can ensure higher welding quality.Clear glass cup gives welders an extraordinary visibility and comfort during welding work.It is specially designed for precision welding and small work to see the position clearly.The set is a perfect accessory kit for WP17/18/26 argon arc welding.Item Name: Welding Accessory KitMaterial: Brass, Copper, Glass, RubberApplication: for WP17/18/26 Argon Arc WeldingFeature: Sturdy, Durable, Easy Operation, Hardware ToolConductor Hole Diameter: 1.6mm/0.06", 2.4mm/0.09", 3.2mm/0.13" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Filter Glass Cup1 x Conductor1 x Electrode Holder1 x White Sealing Ring2 x Red Rubber O-Rings1 x Green Rubber O-Ring