This is for one (1) quality marine grade stainless steel (AISI 316) Square Pad Swivel Eye with Ring. Each pad is stamped 316. The ring wire diameter is 5/16" (8mm). This pad eye features a ring that rotates 360 degrees. 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.