Amazon.com: Endo Ruler with Finger Rings for Dental Measuring and Cleaning High Temperature Resistant Accurate Calibration Convenient to Use : Industrial & Scientific
EndoRing® II Hand-held Endodontic Instrument - WITH METAL RULER – Jordco
Amazon.com: 50 Endodontic Green Dental Triangle Sponge Foam Cushion Holders for Endo Files by PlastCare USA : Industrial & Scientific