Harken Micro Cheek Block Ai_Description The Gill Pro Hikers are

The Gill Pro Hikers are the perfect fusion of comfort and protection allowing the performance racer to hike harder for longer

Boom Size - 43mm

This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail

2 mm Inside Diameter  20

with an adjustable strap over the top of the foot for ankle support

Harken Micro Cheek Block Ai_Description The Gill Pro Hikers areLow friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Sheave 22 mm Length 64 mm Weight 21 g Maximum Line 6 mm Fasteners 5 RH mm Mounting Hole Spacing 52 mm Maximum Working Load 91 kg Breaking Load 544 kg