Harken's compact 29mm Carbo block is extremely strong. Use as a mainsheet block on small boats or for low-friction control block on any size boat.

Specifications:

• 330 lb. SWL
• 1000 lb. breaking strength
• 5/16" maximum line diameter
• 5/32" shackle pin diameter
• 2-5/8" long
• Weight with shackle .9 oz.
• Harken #340.