Rotring Rapidograph Set of 4 Technical Pens .25 .35 .5 .7<img src="http://ecx.images-amazon.com/images/I/51cFGtxzI-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21ZlMZqw7nL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21Ap7YAuJIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31lz8xybV7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21u5Lu2YWtL.jpg" noproxy>