The Hedgehog is quite a distinguished looking Heatsink. All copper, weighing it at the better part of 1.3 lbs, this baby is BIG! Without a doubt this is be biggest and heaviest heatsink I’ve ever used. It was within a couple of millimeters from my PSU. When I first picked it up I was amazed at how heavy it was. I was a bit nervous about mounting it on the ZIF socket instead of directly to the motherboard tray, but all went well.