JJC SC-37 37mm Thread Screw-in UV CPL ND Filter Protector Metal Stack Cap Set Kit<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"> Material: Aluminum </span></li><li><span class="a-list-item"> JJC SC Metal Filter Stack Caps protect filters from dust and scratches </span></li><li><span class="a-list-item"> Simply screw the filters together， then screw these stack caps on the top and bottom </span></li><li><span class="a-list-item"> Great for storing filters when not in use! </span></li><li><span class="a-list-item"> Fits 37mm thread size </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41fyOgOmK-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414JRZ31EfL.jpg" noproxy>