18mm Block:
Sheave Ø (mm) 18 mm
Length (mm) 28,5 mm
Weight (g) 6,4 g
Maximum line Ø (mm) 5 mm
Maximum working load (kg) 190 kg
Breaking load (kg) 500 kg
Ceramic Bearings
29mm Block:
Sheave Ø (mm): 29 mm
Length (mm): 45 mm
Weight (g): 16,5 g
Maximum line Ø (mm): 7 mm
Maximum working load (kg): 350 kg
Breaking load (kg): 700 kg
Ceramic Bearings
40mm Block:
Sheave Ø (mm): 40 mm
Length (mm): 58 mm
Weight (g): 38 g
Maximum line Ø (mm): 12.5 mm
Maximum working load (kg): 850 kg
Breaking load (kg): 1700 kg
Ceramic Bearings
Unleash the power of PolarWave with the ultimate sailing block with plastic swivel. The one you can not compare with any other block.
Engineered to deliver unparalleled strength, lightness and resilience, this sailing block sets a new standard in durability and reliability for marine enthusiasts.
The reinforced single-piece fiber construction ensures unparalleled durability, while the high-quality stainless steel bearing and rivet ensure smooth spinning of precisely crafted plastic swivel.
(All Images are of the 18mm Variant)





