The MST Graether Collar Button, Straight (Item #AH2130) is a purpose-built ophthalmic instrument in the Hooks & Retractors portfolio. Designed around its specific working geometry, it features straight shaft. Straight and angled shafts. Iris retractor and capsule polisher with roughened posterior surface. Round handle. Overall length: 116mm. 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.