The PolarWave 18 mm heavy load double sailing block is engineered for sailors who demand maximum performance, high load capacity, and long-term reliability. With advanced ceramic bearings and precision stainless steel components, this double block delivers exceptionally smooth rotation and dependable strength in the most demanding conditions.

Weighing just 18.9 g, it maintains a lightweight profile without compromising durability. The reinforced single-piece fibre construction provides outstanding impact resistance and rigidity, making it a top choice for high-performance dinghies and custom rigging systems.

Key Features

• Sheave diameter: 18 mm (double sheave block)

• Weight: 18.9 g

• Maximum working load: 320 kg

• Breaking load: 780 kg

• Ceramic bearings for low-friction, smooth rotation

• Reinforced single-piece fibre body

• Stainless steel components for precision and durability

• Extremely lightweight yet robust under extreme loads

• Resistant to UV, salt, and tough marine conditions

• Available in six vibrant colours

• Made in Slovenia by PolarWave

Why Choose PolarWave

PolarWave blocks are designed by passionate sailors who understand the demands of modern dinghy performance. Using advanced construction methods and high-quality materials, PolarWave delivers hardware that is strong, lightweight, and optimized for real racing conditions. The 18 mm double block offers superb load capacity and smooth handling, giving sailors the confidence needed to push harder on the water.