Auto Meter 3209 Tachometer Shock Mounting Adapter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>It is a mounting strap</li><li>Direct replacement for any 5 inch pedestal mount Tach with a inch step-down inch case (ie 3 3/8 inch diameter section where the strap mounts)</li><li>Includes base assembly kit</li><li>Can also be used to convert most 3 3/4 and 5 tachometers to pedestal mount</li><li>Use with your quality instruments for maximum performance</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SD84gbDyL.jpg" noproxy>