Sanyo ST09D， ST-09D Stylus<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Manufacturers suggested tracking force is 1.5 to 2 grams </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ENgyj1bmL.jpg" noproxy>