Harken Midrange Single w/Aluminum Sheave Block 
Midrange Single with Aluminum Sheave Block
Midrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any load.
- Sheave: 76mm/3"
- Maximum Line: 14mm/9/16"
- Max Working Load: 1270kg/2800lbs