Harken ball bearing micro triple block with becket and cam has free-rolling Delrin® ball bearings. Sheaves are UV-stabilized with carbon-black additive for maximum protection. Stainless steel side plates give strength. Harken's low-friction micro blocks are compact and lightweight, with fast trim and release under high or low loads.

Specifications:

• 500 lb. SWL
• 1200 lb. breaking strength
• 1/4" maximum line diameter
• 7/8" sheave diameter
• 2-1/2" long
• Harken #231.