A convenient way to hold endodontic instruments and canal lubricant during procedures. Features an easy-to-read ruler with rubber stop port, allowing quick measurements of files up to 30mm (at 1 and 0.5mm increments) for both right- and left-handed clinicians. Autoclavable (minus the foam inserts). Kit includes Measuring Device with 3 Sizes of Rings, Non-Disposable Gel Well, Disposable Gel Wells x 4, and Foam Inserts x 3.