The PolarWave lightweight 40 mm sailing block is engineered for sailors who demand performance without compromise. Compact, extremely light, and remarkably strong, this block is designed to excel in challenging marine environments while delivering smooth, reliable handling under high loads.

Built with a precision-machined body and ceramic bearings, it offers ultra-low friction and long-lasting durability. Available in six vibrant colour options, it adds both performance and personality to any high-performance dinghy or rigging setup.

Key Features

• Sheave diameter: 40 mm

• Length: 58 mm

• Weight: 38 g

• Maximum line diameter: 12.5 mm

• Maximum working load: 850 kg

• Breaking load: 1700 kg

• Ceramic bearings for ultra-smooth rotation

• Extremely lightweight yet highly durable

• Available in six colours

• Ideal for performance dinghies and custom rigging applications

• Made in Slovenia by PolarWave

Why Choose PolarWave

PolarWave combines advanced engineering with modern manufacturing, from CNC machining to precision 3D printing. Founded by passionate sailors, the brand focuses on creating lightweight, durable hardware that enhances performance on the water. The 40 mm lightweight block is trusted by competitive sailors who need gear that delivers strength, reliability, and low weight without compromise.