Foam filled w/elastomer cover cylindrica marine fender, 4 ft dia, 10 ftlong, end fitting c to c hole spacing to be 10 ft 5 in. Porm 1 in., end fittings to be suitably sized for 1.250 safety chain shackle, weight not to exceed 1100 lb, energy absorption at least 50000 ft-lb at 60 pct compression