Harken 404 Air Segelblock

A block for small synthetic control lines found on high-tech dinghies, that uses an O-ring to keep the line in the sheave during intermittent loading. Sheave diameter - 16 mm, length - 29 mm, weight - 10 g, rope diameter max. - 5 mm, max. working load - 113 kg, breaking load - 544 kg.