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The new Twing block features a spring-loaded side opening mechanism designed for true one-handed rigging, even while wearing sailing gloves. Black anodized aluminum sideplates are edged with robust bumpers to protect the block, topsides, and deck. The sheave is aluminum and rolls on a bearing system shared with Harken's existing 2.3T high-load snatch block.
Side Opening: Spring-loaded mechanism allows for true one-handed rigging, even while wearing sailing gloves.
Sideplates: Black anodized aluminum sideplates are edged with robust bumpers to protect the block, topsides, and deck.
Sheave: Aluminum sheave rolls on a bearing system shared with Harken's existing 2.3T high-load snatch block.
Specifications
• Brand: Harken
• Reference: 3405
• Sheave Ø: 38.5 mm
• Length: 78 mm
• Weight: 143 g
• Maximum line Ø: 11 mm
• Maximum working load: 1000 kg
• Breaking load: 2000 kg






