Check the listing for details. Grady White Helm Seat Slides. Color: White, Condition: New other (see details). Listed at 20.00 USD. This listing is for two pairs of plastic seat slides/glides which will allow repair of two helm seats. These are reverse engineered from the OEM design and 3D printed in white PLA. These will fit many late '90s/early 2000s Grady White Helm seats which have a base with dimensions of 6 1/4" x 5 5/8" x 1/4" and slide recesses which are 1/2" tall, as shown in the dimensional drawing. The seat bases which these fits have a lever to release the seat for fore/aft sliding and an oval white knob to lock rotation, as shown in the product images. These sliding bases are often used on the Pompanette bucket-style seats of that era, as well as some ladder-back seats. Please review images and dimensions carefully to ensure this product will work with your seats. These are reproductions and not OEM Grady White parts. Typical fitment (again, please review images and dimensions):Late-90's/eary '00s Adventure 208Mid-late 90s SailfishMid-late 90s Seafarer