AmScope EP20X30E Pair of Extreme Widefield 20X Eyepieces (30mm)<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"> 20X Magnification Power </span></li><li><span class="a-list-item"> 12mm Super Wide Field of View </span></li><li><span class="a-list-item"> 30mm Mounting Size (in diameter) </span></li><li><span class="a-list-item"> High Eye-point Design </span></li><li><span class="a-list-item"> Coming with an 1-7/8" (48mm in diameter) Mounting Adapter </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Rpn9HriTL.jpg" noproxy>