Ronstan Ball Bearing Utility Blocks - Series 15 - Singel Block, Swivel Hook Head prop repair Max Hull Thickness: 4-43mm

Max Hull Thickness: 4-43mm

SP versions feature a Nylatron® sheave suitable for both rope and wire

The flexible neoprene impeller allows for smooth operation with minimal maintenance required

Colors: White or Marine Orange and Carbon POA

Suit Mercruiser 863077-1 and 863077T

Ronstan Ball Bearing Utility Blocks - Series 15 - Singel Block, Swivel Hook Head prop repair Max Hull Thickness: 4-43mmSmallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O ring to separate running line from head lashing or fixing