Spinlock ZS Open Jammer 11/16" - 15/16" UPPER SWIVELS 7 Series Cheek Block with

7 Series Cheek Block with anodized Aluminum cheek and ball bearing sheave

Max SWL - 575kg (270lb)

4-way stretch fabric across the back of the hand provides UV 50+ protection and is water repellent

Weight(oz) - 31

Spinlock ZS Open Jammer 11/16" - 15/16" UPPER SWIVELS 7 Series Cheek Block withProduct Description Spinlock ZS Open Jammer 11 16" 15 16" The essential solution for peeling spinnakers, headsails and reefing. Unbeatable in an emergency Features and Benefits: Easily attached to any strong point with a strop Hinged body can be opened and closed like a snatch block Acts as an emergency line clamp in case of winch or other hardware failure, jammed halyards, riding turns, damaged lines Frees a winch for a sail change Custom options