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 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 Resistant 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.