Marine dock floats hollow One-piece rotatational molded seamless construction,100% virgin rrime grade polyethylene material with UV inhibitors, surpasses braking & absorption test standards, treated to prevent damage from sun, debris, oil, gas, marine organisms & salt water. 285 b uoyancy. 24 inches X 48 inches X .08 inches One-piece rotatational molded seamless construction,100% virgin rrime grade polyethylene material with UV inhibitors, surpasses braking & absorption test standards, treated to prevent damage from sun, debris, oil, gas, marine organisms & salt water. 285 b uoyancy. 24 inches X 48 inches X .08 inches...