This stainless steel detention stool is 12 inches square with a .5" thick handcuff ring. It is an integral unit and fully welded. It is fabricated from 12 gauge type 304 series stainless steel with a brushed satin finish. The corners are rounded and ground smooth. There is a 1.5 inch return all around the bench. The floor flange is .250 inch thick type 304 series stainless steel and is welded to 2 inch schedule 40 type 304 series stainless steel. The handcuff ring is .5 inch type 304 steel plate that is welded to the bottom of the bench. Fasteners are not included.