This is a used item. It has been shown at Trade Shows. There are some scratches / mark on the unit.
Mariner Seat Mount Slide
Finish: White Powder Coated
Designed for "Adjustable Post" (post not included)
Slide Plate Dimensions: W 10.5" X L 14.5" X T 1/4"
Swivel locks and clamps tight to 4" Post (post not included)
Handles are large and easy to reach
Swivels 360 degrees
Slide Travel: 6" fore and aft
Adds 3-7/8" to height
Rated: AD (Driver)