Bower AU40558 Step Up Ring Adapter， 40.5 mm to 58 mm (Black)<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"> Step up ring </span></li><li><span class="a-list-item"> 40.5mm to 58mm </span></li><li><span class="a-list-item"> Allows you to use larger size filters on lenses with a smaller diameter thread. The first number is the size that screws into the lens， the second number is the filter size. </span></li><li><span class="a-list-item"> Suitable for: Filters， Lens， Lens hood， Lens cap， etc. </span></li><li><span class="a-list-item"> Limited Lifetime Manufacturer Warranty </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/414L5DcVVeL.jpg" noproxy>