The Mercontrols Dual Lever Shift and Throttle Control Box is a high-quality boat part designed for controlling the shift and throttle of a boat. With two levers for easy handling, this control box provides a smooth and precise operation experience for boaters. The Mercontrols brand is known for producing durable and reliable parts for boats, making this product a trusted choice for those looking to enhance their boating experience. Pre-Owned. Looks to be in good condition, and person I bought it from, said it is in working condition. However, I have no way to Test it. As such, it is Sold in AS IS Condition. Please view all pics provided.