The accessory mounting system, for the late model Old Town Predator, consists of strategically placed high-strength polyethylene plates, this means no more drilling into your boat hull. See Example Photo with Rod Holders. 11.25 inches long, 2.5 inches wide, .5 inch thick. Four screw holes are 10.25 and 1.25, all on center. Made with slots for tracks (aka trax). These plates are durable and easy to customize with rod holders, fish finders, slide tracks, GPS and much more. Order as replacement plates, or as extras to make switching out pre-rigged gear as quick as 4-screws. This kit contains 2 plates and mounting hardware. This is an updated version of Old Town part number 01.1332.0022, made in China.