This seal kit is for the early type Marzocchi rear shocks that have a 10mm shaft and a non-crimped type hex head retaining nut for the seals and oil reservoir. The kit contains 2 bumper rubbers, 2 oil seals, 2 oil seal dust covers, and 2 different sized retaining nut o-ring seals. The 2 different sized o-rings for the groove around the retaining nut are included as Marzocchi had 2 different versions of this nut, one with a deep groove and another with a shallow groove, so only one set of o-rings are needed depending on what version shock you have.
Note: Marzocchi also had another version of this shock absorber that had the seals crimped inside the top of the reservoir nut. Ordinarily these shock were not serviceable although it is possible to machine the nut to take a circlip, thus enabling the seal to be serviced when required.
Order qty 1 and you get seals etc. for 2 shocks.