Elite Medical Instruments EKG-100 EMI Deluxe EKG ECG Caliper<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Brand: Elite Medical Instruments model # ekg-100</li><li>Made with hardened steel</li><li>3 7/8" length</li><li>Complete with plastic end cap</li><li>Chrome-plated caliper measures ecg wave sections with radius up to 7"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31g%2BA4ys%2BpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/212xeMDZyvL.jpg" noproxy>