This compact double block is extremely strong and features a U-Lock to hold the swivel in front/side position, or to let it spin freely. Use this miniature Carbo as a mainsheet block on small dinghies such as the Optimist, to increase downhaul, or for low-friction control blocks on any size boat.

Specifications:

• 1-1/8" sheave diameter
• 2-7/8" long; 1.8 oz weight with shackle
• 3/16" shackle pin diameter
• 5/16" maximum line size
• 660 lb. maximum working load
• 1625 lb. breaking load