You are bidding on a brand new Tig Welding Gas Lens Kit.
It includes one of each of the following:

8pcs package including as below:
2 Piece Ref.No : 18-7 Insert back Insulator
2 Piece Ref.No : 18CG Cup Gasket
2 Piece Ref.No : 54N01 Gas Len Insulator
2 Piece Ref No : 54N63 Lg.Dia. Gas Len Insulator
This kit fits all 17 & 26 series air cooled torches and 18 series water cooled torches,
including the Lincoln PTA-17, PTA-18 and PTA-26 torches,
Miller Diamondback DB17, DB18 and DB 26 torches,
along with the Weldcraft WP-17, WP-18 and WP-26 torches.