Vortex Defender Flip Objective 50 (55-59mm)<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"> Outside diameter: 0-55 / 55-59 mm / 2.16 - 2.32 inches </span></li><li><span class="a-list-item"> Virtually indestructible </span></li><li><span class="a-list-item"> Great fit， this cap will fit snugly on a wide range of Vortex Optics. </span></li><li><span class="a-list-item"> Vortex VIP Warranty </span></li><li><span class="a-list-item"> Features a snap flat spring that will keep your line of sight unobstructed， and tabs on each side for quick open or close </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51jlhRmtkJL.jpg" noproxy>