This Norralco Bodenhammer Rectal Speculum is a premium surgical instrument designed for rectal surgery. It has a set screw and measures 6 inches in length with blades at the distal end measuring 3.5 inches in length and 3/4 inch in width. The instrument is made in Germany and is ideal for healthcare professionals in the field of rectal surgery. This unit quantity of one is perfect for those in need of a high-quality rectal speculum.