Kenko Auto Extension Tube Set DG 12mm， 20mm， and 36mm Tubes for Nikon AF Digital and Film Cameras - AEXRUBEDGN<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"> Designed to enable a lens to focus closer than its normal set </span></li><li><span class="a-list-item"> Very Useful for Macro Photography </span></li><li><span class="a-list-item"> The Extension Tubes have no optics </span></li><li><span class="a-list-item"> Focus Closer to the objects you see and enjoy the feel of photography </span></li><li><span class="a-list-item"> Auto Extension Tube Set for the Nikon AF Mount </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/411Fk2sfAxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31OWc0twHpL.jpg" noproxy>