Harken 16mm Airblock Single Flip Flop Block Tracking_Boardfy The 4mm neoprene upper wraps

The 4mm neoprene upper wraps the foot for warmth and a close fit

Breaking Load  750 kg Length 41 mm Maximum Line Diameter 2-5 mm Shackle Pin - Sheave Diameter 25 mm Weight 25 g

This gives our Tii-On range maximum strength and reliability with minimal cheek separation when tied on and loaded up with a soft shackle

Fixing Hole Diameter 4mm Increments 12

Harken 16mm Airblock Single Flip Flop Block Tracking_Boardfy The 4mm neoprene upper wrapsThe 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 34 mm Weight 21 g Maximum Line 5 mm Fasteners 4 RH mm Maximum Working Load 113 kg Breaking Load 544 kg