Nauticus Smart Tabs II Series Trim Tabs 16 X 10 f/23-30' Boats - 6500lbs Max. If these trim tabs don't provide you with an outstanding performance increase contact us within 30 days of your purchase.Why buy a manually adjusting trim tab set when you can get the automatic trim tabs that will self adjust and performance better for less money?Designed for boats 23' - 30' weighing up to 6500 lbs The ST 1610 Series is ideal for low profile Fiber Glass Aluminum and RIB design boat with transom widths less than 10 feet (trailerable boats). This heavy duty system provides an active suspension system for the boat that increases stability and smooths the ride even in rough seas. Easier planning at slower speeds increased payload performance improved tracking and handling are available automatically without the need for pilot interface. No switches no electric or hydraulic connections and no maintenance. Just get in and goSpecially designed for boats between 23' and 30" under 10' in width and up to 8500 Lbs gross weight. The ST1610 series Specifications for Nauticus ST1610-120 Smart Tabs II Series Trim Tabs 16 X 10 f/23-30' Boats: Manufacturer: Nauticus Length: 30 ft Color: Black Package Contents: Nauticus ST1610-120 Smart Tabs II Series Trim Tabs 16 X 10 f/23-30' Boats Nauticus ST1610-120: ST1610-120 Smart Tabs II Series Trim Tabs 16 X 10 f/23-30' Boats - 6500lbs Max