The CM has been designed to provide the ultimate in strength, durability and versatility, providing increased security to any mooring. The mooring iron is made from 1/2-inch galvanized steel with the additional protection of a vinyl coated eye. A larger eye (4-3/8'' diameter) and swivel (1-1/2'' diameter along) provides maximum strength. And best of all the CM's soft vinyl surface won't harm boat finishes. Available in fluorescent red and white with a blue stripe.