Harken 16mm Airblock Pivot Cheek Block Tracking_Boardfy It adjusts like a standard

It adjusts like a standard lace-up but the ankle strap gives you extra support at the joint and keeps the fit locked in without the laces working loose mid-race

Perfect for layering under a wetsuit

Length (in) 1 5/8 Width (in) 1 3/8 Weight (pair) (in) 1

Length 61 mm Maximum Rope Diameter  10 mm Weight  27 g Breaking Load  400 Kg Maximum Working Load  200 Kg

Harken 16mm Airblock Pivot Cheek Block Tracking_Boardfy It adjusts like a standardThe 16 mm is Harkens smallest block. It is perfect for small synthetic control lines found on high tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load. Sheave 16 mm Length 35 mm Weight 11 g Maximum Line 5 mm Maximum Working Load 113 kg Breaking Load 339 kg