This combination of the PolarWave 29 mm lightweight block and the Marlow 2.5 mm Dyneema SK78 soft shackle is the ideal setup for the ILCA deck block plate. The larger sheave diameter provides smoother line handling and reduced friction, making it the preferred choice for sailors who want maximum efficiency and responsiveness from their control systems.

The PolarWave 29 mm block offers exceptional load capacity with a lightweight fibre body and ceramic bearings for ultra-smooth rotation. Paired with the Marlow soft shackle, you get a corrosion-free, lightweight connection that eliminates the need for metal hardware and reduces overall system weight.

Key Features

• Complete deck block attachment kit: 29 mm block + soft shackle

• Soft shackle made from Dyneema SK78 D12 (2.5 mm)

• Smooth rotation thanks to ceramic bearings

• Larger 29 mm sheave for improved efficiency and reduced friction

• No metal shackles needed, eliminating corrosion and reducing weight

• Perfect fit for the ILCA deck block plate

• Simple to install and easy to inspect

Why this combo works

The soft shackle provides a flexible, lightweight attachment with zero metal contact, while the 29 mm PolarWave block offers better line flow and smoother operation than smaller blocks. This combination is highly recommended for ILCA sailors who want a clean, efficient, and high-performance deck block setup.