Sklar's Williams Lachrimal Probe is a very thin malleable rod with a rounded end used in procedures within the lacrimal system, often pertaining to reestablishing tear flow. This double-ended instrument has different size tips on each end and the center features a tongue tie that is used as a holding point. This product is a set of 4 and contains the size 1/2, 3/4, 5/6, and 7/8 probes.