The MST Knolle Spatula and Chamber Gauge (Item #AH5260) is a purpose-built ophthalmic instrument in the Spatulas portfolio. Curved shaft, flat spatula blade, 30mm long blade, marks at 5mm, 6mm, and 7mm from tip. Round handle. Overall length: 126mm. 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.