Nauticus SX Series Smart Tabs feature: Great for Large RIBs, Day Cruisers, Rescue, Deck and Cuddy Cabins 2 or 4 Stroke and I/O Motors This model for boats 21 - 25 Ft with horse power rating up to 250 HP. 10.5" x 12" plates FREE Installation and Demonstration DVD Kit includes the Stainless steel components, Self -contained nitrogen gas actuators with rubber boot seals and complete owners manual and installation manual Manufacturer's warranty - Nauticus, Inc. Warrants to the retail purchaser of this product that it is free from defects in material and/or workmanship for five years on all metal components & two for rubber boot covers and gas actuators, from date of purchase.