Donut fender is designed for guiding and protecting vessels and structure
due to its excellent performance of floating up and down with the tide. It is
composed of closed cell EVA foam and polyurethane spray skin. Donut
fender is usually installed over monopiles and rotate up and down with
tides helping guiding the vessels and ships.
Donut fender can float up and down with the water line. The inner casing is
wear-resistant with low-friction bearings. Besides, the donut fender is
unsinkable and durable.