Probe with Eye, Sklar, 10 in., Stainless Steel. Sklar's Probe with Eye is a slender, slightly malleable, multipurpose instrument with a bulbous tip that can be used in a variety of procedures. It may be used to explore or gauge the depth of non-visible cavities, explore lesions, or manipulate tissue. This product is straight with an eye at the handle, and a length of 10 inches. The eye may be used for carrying ligatures.