The Defecogram Chair is used for radiography of bowel movement in radiology rather than use of MRI as a cost reduction. Designed to fit between the fluoro tower and table and is sturdy enough to accommodate patients up to 300lbs. Commode pail will slide in through back opening. Hook and loop panel allows access to the pail for post procedure cleaning. Product made of schedule 40 1.25" healthcare grade PVC Pipe and Fitting.