This Shoreline Marine mounting plate is exactly what you need to secure your boat seat to the pedestal. Model number is SL52198, and it's designed for a 3/4-inch pin setup. Made from sturdy steel with a silver finish, so it can handle the marine environment without rusting up too fast. Dimensions are about 6 5/8 inches long, 6 5/8 inches wide, and 5 3/8 inches tall overall. It's brand new, unused, and comes in original retail packaging (unless it's in an unprinted box). Manufactured in China, but Shoreline Marine is a trusted name in boat parts. No warranty included, but it's a simple, solid piece of hardware. UPC is 013893521989. If you're replacing a worn-out plate or setting up a new seat, this plate makes installation straightforward. Just bolt it down, pop your seat on, and you're ready to fish or cruise in comfort.