This is for one (1) quality marine grade stainless steel (AISI 304) 2 1/2" Heavy Duty Diamond Pad with eye. Each pad is stamped 316 and 2 1/2". The metric equivalent is generally considered to be 65mm. Not to be used for overhead lifting. AISI 304 stainless is a standard grade of stainless. Breaking load 4840lbs.