The MST Castroviejo Needle Holder, Straight (Item #AN0290) is a purpose-built ophthalmic instrument in the Needle Holders portfolio. Designed around its specific working geometry, it features straight, 12mm heavy jaws with lock. Overall length: 136mm. Straight and curved jaws, with various jaw sizes and styles. Comes with a locking mechanism. 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.