The jockey pole reduces the loads and minimises the wear on guys and life lines when using a spinnaker at Broad Reach.

Connected to the side of the mast it keeps the foreguy/windward guy away from the  stanchions and cap shrouds and also makes for a more efficient angle of the guy. 

The inner end is a regular spinnaker pole fitting and the outer end is an open jaw with a sheave. Tie the jockey pole to the cap shroup when used. The pole features plastic spinnaker pole savers on the sides to prevent wear and tear.

096-096-59 includes inboard end 534-778-04 and requires male fitting 508-149-01 at the mast.

It is recommended for a maximum righting moment at 30° heel of 250 kNm. 

Calculate your righting moment:

https://support.seldenmast.com/en/services/calculators/rm_calculator.html

RM 30: 250* kNm
Section: S096
POA: 2840 mm
Saver: 750 mm
D 1): 600 mm
Fixed Pole Eye: 508-149-01