This kit fits all 17 & 26 series air cooled torches and 18 series water cooled torches, including the PTA-17, PTA-18 and PTA-26 torches, DB17,DB18 and DB 26 torches, along with the Weld craft -17, -18 and -26 torches. With excellent plasticity, toughness and crack resistance, especially low temperature impact toughness higher. Uses: for a variety of locations of the pipeline TIG welding arc welding and arc welding, can be satisfied with the welding joints. Can be welded carbon steel and some low alloy steel. Size: 2.4MM Package include 4 x #12 Glass Cup 1 x 57Y04 Short Back Cup for Tig Welding Torch 1 x 57Y03 Medium Back Cup for Tig Welding Torch 1 x 57Y02 Long Back Cup for Tig Welding Torch 2 x TIG Collet 2 x Stubby Gas Lens 1 x 18CG-20 Cup Gasket 1 x 18CGG Cup Gasket 10 x Temperature O-rings Colour:Photo Color Material:Copper + glass Package Contents: 1 x TIG Welding Torch set(23pc) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.