You are buying

 A washer / seal kit including V42 mantle

to suit Vapalux & Bialaddin lamps.

A set for 1 lamp comprises of

8 x assorted washers and 1 x mantle:

1 x V42 mantle

1 x V24 leather pump washer

1 x T811 filler cap washer

1 x V34 pump valve washer internal 

1 x V23 jet cleaner washer 

1 x V44 vapouriser washer

1 x V33 pump valve washer external

1 x V9 air release screw washer

1 x V28 jet cleaning gland nut packing washer