Steiner-Auvard Vaginal Speculum features a shallow half blade at a right angle to the blade, which has a spherical weight. The instrument is used in obstetrics to keep the vaginal canal open to keep the surgeon's hands free during the procedure. The weighted speculum is available in various sizes of blades to accommodate a wide range of cases. Please note that website images are often representative of the product family and may not conform to the exact specifications or features of the item you select. The final specifications will match the description of the specific catalog item you select. Please review such specifications in the item description to ensure the correct product is ordered.