Miller Titan by Honeywell T8221/ Locking Rebar Chain Assembly with Two Locking Snap Hooks This locking rebar chain assembly provides positioning assistance Two locking snap hooks and one locking rebar hook Locking snap hooks have 3/4-Inch gate opening Locking rebar hook has a 2-1/4-Inch gate opening Measures 14-1/5-Inch length by 9-2/5-Inch width by 2-Inch height