Wichard Single 1 49/64" (45mm) Ball Bearing Cheek Block Watches-accessories All purpose (AP) blocks are

All purpose (AP) blocks are a great all around solution

10mm DIN 766

This gives an approximate expected length for the Boomkicker which can be compared to the pin to pin lengths of the models in the table

Lanyard attachment hole

Wichard Single 1 49/64" (45mm) Ball Bearing Cheek Block Watches-accessories All purpose (AP) blocks areProduct Description Wichard Single 1 49 64" (45mm) Ball Bearing Cheek Block Features: Weight: 2. 7 oz. (76 g) Sheave diameter: 1 49 64" (45mm) Shackle Diameter: 13 64" (5mm) Length: 2 9 16" (65mm) Width: 1 15 16" (49mm) Thickness: 29 32" (23mm) Working load: 882 Lbs (400 kg) Breaking load: 1980 Lbs (900 kg) Rope Size: 13 32" 13 64" (10mm) Forged Shackle: 13 64" (5mm) Applications Cheek blocks applications for genoa sheets Material Grade 316L stainless