Harken 22mm Block 

Murrays Part# 28-0224

This Harken ball bearing micro single block with stainless side plates is a small block with high load capabilities. It is a premium quality block for your trapeze return system. Either swage in place or hang with #21-0615 shackle. Block has 7/8" sheave, Delrin ball bearings and 1/4" maximum line capacity. Safe working load is 200 lbs.; breaking strength is 1200 lbs. 1-1/2" long. 

This block is also used for H16 Jib Clew blocks. Use two of these blocks with a 3/16 bow shackle on the clew of your jib for maximum sheeting potential.
Note: the shackle should go through two of the adjustment holes on your clew plate, with one block on each side of the sail.

Harken Part# 224

Hobie Part# H224