6 Pieces Set of Bowman Lacrimal Probe 6" Surgical Dental ENT Sizes are: (1)... # 0000-000, (2)... # 00-0, (3)... # 1- 2, (4)... # 3-4, (5)... # 5-6, (6)... # 7-8,. Bowman Lacrimal Probe 6" Surgical Dental ENT SIZES #0000-000, # 00-0 #1- 2, # 3-4, #5-6, #7-8 Stainless Steel Double Ended Premium Instruments. Manufactured for Optimal results and Precision. Bowman Lachrimal Probe is a very thin malleable rod with a rounded end used for clearing a nasolacrimal duct, or in procedures within the lacrimal system. This double-ended instrument has different size tips on each end and the centre features a tongue tie that is used as a holding point.