Econo Probe with Eye, Sklar, 6 in., Blunt, Probe, Straight, Smooth, Stainless Steel. Econo 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, manipulate tissue or carry ligatures. Econo instruments are Sklar's floor-grade, disposables and are sold in bulk quantities.