Ronstan 25mm Lashing Ball Bearing Block

The Ronstan 25mm Ball Bearing Orbit Block is a high-performance, single sheave block designed for serious dinghy and small boat sailors. Featuring an innovative lashing head, this block ensures easy attachment and adaptability for various rigging needs. Constructed with Ronstan's acclaimed acetal bearing system, it delivers an excellent strength-to-weight ratio, making it perfect for demanding applications like mainsheet, spinnaker sheet turning blocks, cunninghams, and cascading vangs on boats up to 4 meters.

This block's stainless steel hub accommodates lashing lines up to 4mm (5/32") and is designed for maximum efficiency without sacrificing reliability.

• 2-stage ball bearing system for smooth operation.
• Compatible with lines up to 8mm (5/16").
• Hollow hub for becket take-off capability.
• Designed for lashing with up to 4mm (5/32") line.