Turntable Strobe Disc Stroboscope mat | Made in USA | Tests 33-1/3 rpm， 45 rpm<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Test turntable platter speed</li><li>Works on 50 Hz and 60 Hz</li><li>Made of 12" x 2mm thick rigid aPVC composite</li><li>Instructions included</li><li>Tests 33-1/3 rpm， 45 rpm， and 78 rpm speeds</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61B9pfA%2B6VL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41dc8QEFx0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51EARtujUqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41aeneSg7vL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51RtT1AbP3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41MPIn5VyDL.jpg" noproxy>