The MST Kirby Expressor Double-Ended Hook and (Item #AH3160) is a purpose-built ophthalmic instrument in the Hooks & Retractors portfolio. Designed around its specific working geometry, it features loop. Double-ended, straight shafts, curved 5mm x 10mm loop, smooth loop, 10mm wide muscle/expressor hook. Round handle. Overall length: 155mm. 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.