Seat back (white PVC) with aluminum arm rests. Dimensions of the boards is 44.75″ x 8″ x 1″. Bottom board is a separate part.
 
This item shows that it is out of stock on this website because you need to call to order due to the varying shipping charge. If you would like to order this item, please call us at 989-235-6776. Sorry for the inconvience!

If you are replacing the redwood seats on your older Paddle King paddle boat, you can replace the boards with the seat back board and seat bottom boards, but you cannot order this item. Please see those 2 items for further information.