3 Pcs 41mm OD 22.5mm ID 30mm Height LED Heatsinks Cooling Fin Radiator<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"> Product Name : Cooling Fin;Material : Aluminium </span></li><li><span class="a-list-item"> Color : Silver Tone;Mounting Hole Diameter : 1mm </span></li><li><span class="a-list-item"> Mounting Hole Spacing : 21mm/0.83";Outer Diameter : 41mm / 1.6" </span></li><li><span class="a-list-item"> Inner Diameter : 22.5mm/ 0.9";Total Height : 30mm/ 1.2" </span></li><li><span class="a-list-item"> Weight : 117g;Package Content : 3 x Cooling Fin </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41t1iSvvLlL.jpg" noproxy>