The rest weighs a satisfying 15½ lbs., thanks to its cast-iron base. Fine elevation adjustments are made from a large-diameter rotating wheel that glides on a set of ball bearings. Coarse elevation adjustments are made with a locking collar. Windage-adjustable cradle lets shooters make fast, smooth horizontal adjustments to handle wind shifts - especially appropriate for shooters using wind flags. The cradle features a sturdy bag tensioning system for excellent forend support and increased stability and accuracy. Includes a free three lobe synthetic bag that works especially well for flat-bottomed forends. The cradle has specially designed slots that allow users to quickly install or interchange any of Caldwell's Deluxe front Rest Bags to fit round-bottomed shapes.