This is for one (1) quality marine grade stainless steel (AISI 316) rigid eye snap hook with safety latch. Each snap hook is stamped 316 with the makers mark. The snap hooks are marked in the US specification style of 5-1/2". 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.