1-pack 4mm Cleaning Cartridge (Discontinued by Manufacturer)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> With True Enhanced Performance. </span></li><li><span class="a-list-item"> Latest Technical Development. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21gnBT6zK4L.jpg" noproxy>