Paddle with comfort for hours! BackSaver's adjust in height and support angle to fit the needs of individual users. When the BackSaver is adjusted to the right height users will automatically sit up straighter, push back with their upper body, and relieve strain on the lower back. Designed for the unique demands of Boundary Waters style canoeing, BackSavers fold down on the seat for storage or portage. Light weight but strong with an open design that lets your back breath on hot days. Spring loaded hinges hold it upright making it easier to get in the canoe. Attaches to your existing bucket canoe seat. Please call Customer Service to order for solo canoes, as this model will not accommodate the previously standard solo slide frame. THIS DOES NOT WORK WITH THE OLD FIBERGLASS SEAT, THE STERN FIXED BUCKET SEAT ON A MN 3, NOR A SLIDING STERN BUCKET SEAT. For special accommodations for these situations, please contact CushGear direct.