Sheave: 51 mm (2 in)
Weight: 170 g (6 oz)
Maximum Wire: 5 mm (3/16 in)
Maximum Line: 6 mm (1/4 in)
Fasteners: 8 RH mm (5/16 RH in)
Maximum Working Load: 907 kg (2000 lb)
Breaking Load: 1814 kg (4000 lb)

Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.

Footnote: Fasteners included