The MST Bowman Lacrimal Probe Sizes 1 and 2 (Item #AL1340) is a purpose-built ophthalmic instrument in the Lacrimal Instruments portfolio. Designed around its specific working geometry, it features sizes: 1 and 2. Variety of sizes. Sterling silver. Overall length: 149mm. 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.