Much stronger than other same-size blocks and much more compact than other blocks handling the same loads. "Smart" features include a unique captive lock universal head fitting and an adjustable cam arm. The ball bearing blocks  feature Ronstan's two-stage bearing system, which has exceptional low-friction performance and very high maximum working loads. Includes a unique ball bearing fiddle block. For dinghies and keelboats to 26'.

• Sheave: UV stabilized acetal
• Bearings: Two-stage acetal ball bearing system or plain bearing
• Sheave Size: 1-9/16" (40mm)
• Line Diameter: 7/16" max. (except fiddle blocks: 5/16" max.)
• Cheek Material/Finish: Stainless and fiber-reinforced textured Zytel
• Shackle/Strap Type: Universal head shackle. Either locks (0° or 90°) or swivels

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