Staedtler Geometry Compass (550 WP01A6)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Compass with lead box</li><li>Center wheel adjusts quickly and easily</li><li>Maximum circle drawn is 10，25“ (26cm)</li><li>Includes spare lead tube with extra 2mm lead</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41a%2B3C6PwLL.jpg" noproxy>