The MST Bowman Lacrimal Probe Sizes 7 and 8 (Item #AL1370) is a purpose-built ophthalmic instrument in the Lacrimal Instruments portfolio. Designed around its specific working geometry, it features sizes: 7 and 8. 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.