3.0 mm x 12.0 mm loop, 11-3/4″ (29.8 cm) Duncan Endometrial Biopsy Curette is designed with a rectangular loop tip to excise and collect endometrial tissue for biopsy. The loop tip is available with or without a basket depending on the purpose. 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.