Harken® Classic blocks have stood the test of time. For over 35 years, these strong, light and exceptionally free-rolling blocks have provided both racers and cruisers dependably correct hardware for every trimming task.

Ball Bearings:
Carbon-black Delrin® ball bearings roll on flat races for exceptionally free-running blocks.
Stainless Steel Sideplates:
High-strength stainless steel sideplates distribute load evenly.
UV Protection:
Black ball bearings and sideplates are US-protected to provide maximum durability.
Three-way Head:
Three-way head locks shackle in front or side positions, or swivels freely to keep line from twisting.