Polaroid 52mm Filter Adapter Ring For GoPro HERO3， 3+， HERO4 With A Standard Housing - Mount Filters To Your GoPro<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"> Woks with GoPro® Hero 3 &amp; 3+ Standard Housing ONLY </span></li><li><span class="a-list-item"> Allows you to attach 52mm filters </span></li><li><span class="a-list-item"> Made of durable anodized aluminium </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41UrkkTvaxL.jpg" noproxy>