Custom Boomkicker for Catalina 30 includes a flat mast slide to fit the luff groove, preselected spring rods and specific installation instructions. Boomkicker boom supports replace the boom topping lift along with the chafe, windage and hang-ups and adjustments. Great for racers and cruisers. Easy installation separate from the vang. Fitting, fasteners, drill and tap included for a complete package. Join thousands of happy customers.