This is for one (1) quality marine grade stainless steel (AISI 316) pelican hook. Each pelican hook is stamped 316. The pelican hooks are made in the metric specification of M8. The Imperial equivalent is generally considered to be 5/16". Not to be used for overhead lifting. AISI 316 stainless is a premium grade of stainless and is considered by many to be best in class. 316 stainless is corrosion resistant and very durable even in the harshest of conditions.