... characteristics of navy anchor:∴ Gray cast iron∴ Available coated with aluminum-painted finish, PE coated or black PVC coated finish∴ Many sizes are available ... . Aluminum-painted: 5LB, 10LB, 15LB, 20LB,28LB PE coated: 5LB, 10LB, 15LB, 20LB,28LB PVC coated: 10LB, 15LB, 20LB, 28LB Cast Navy anchor