Fisher Space Pen SPR4 Black Ink Medium Point Refill， 6 Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Six refills </span></li><li><span class="a-list-item"> Black ink， medium point </span></li><li><span class="a-list-item"> Performs in temperatures from minus 30F to plus 250F， underwater， in zero gravity， at any angle-even upside down </span></li><li><span class="a-list-item"> The choice of ski patrols， search and rescue teams， law enforcement agencies， armed forces &amp; everyone who demands reliability in a writing instrument </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51UufAqd3iL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51qAVbsrNlL.jpg" noproxy>