Barbour Plastics Dock Bumper F92323 White. 3 inches x 2 inches. Produced from superior quality, marine grade flexible vinyl: the finest UV fungicide inhibitors are added to long life. Our dock bumpers are made in specifically designed shapes to suit any dock design or impact resistance requirements. They can be screwed, nailed or bolted into place. Sold by the Length: 10 feet. Can only be shipped Truck.