11-18 Wrangler JK, 4-Door;6-piece kit;Manufactured from 1420 .120 Wall DOM;The Knuckle attaches using a unique pivot on one end;Satin black powder coat finish;5-year limited warranty;No drill installation;Works with most soft goods, factory and aftermarket tops;Front down bars have built-in tubular grab handles;Requires modification to factory roll bar covers;California Residents: WARNING