Harken 40 mm Zircon Block with Becket 2191

Zircon blocks from Harken boast high performance due to the presence of industrial ceramic ball bearings that are securely mounted within caged races. These cages ensure that the bearings remain separated and do not come into contact with each other, resulting in excellent efficiency for small boat blocks.

• Length 2-7/8"
• Sheave dia 40 mm
• Length 73 mm
• Weight 26.5 g
• Maximum line 8 mm
• Maximum working load 115 kg (250 lb)
• Breaking load 340 kg (750 lb)