Orion 5123 1.25-Inch Telescope Eyepiece Extension Tube<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"> Versatile extension adapter for 1.25" telescope eyepieces and accessories adds 2" of extension </span></li><li><span class="a-list-item"> Provides extra focuser back travel which is often needed for short-range terrestrial viewing or astrophotographic applications </span></li><li><span class="a-list-item"> Includes two thumbscrews for securing inserted telescope eyepieces or accessories </span></li><li><span class="a-list-item"> Threaded for use with 1.25" telescope eyepiece filters </span></li><li><span class="a-list-item"> Made of anodized machined aluminum </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41AoO%2BrhilL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/71oYysww36S.png" noproxy>