The MST Simcoe Double-Ended Nucleus Loop (Item #AH3220) is a purpose-built ophthalmic instrument in the Lens Loops portfolio. Double-ended, both ends angled loops, 4mm wide x 20mm long loops, serrations on tops of loops. Round handle. Overall length: 140mm. This combination of thoughtful design details and clearly defined specifications helps surgeons quickly identify the configuration that best fits their preferred technique and procedural needs.