Big bolts hold a small 15mm thick fan in place on the Arctic Ice heatsink. The seven bladed impeller doesn't generate that much noise and really has a very simple look to it. On the positive side, the fan connects to a motherboard fan header with a nice long cable that is rare to see these days.

Normally manufacturers use cross cuts or texturing on the outside of the extrusion to add grip, improve airflow or just make it look better. The Arctic Ice is very, very plane on the inside, and as we can see here, on the outside. Note the small cuts on the two tabs - these can be used to lock the heatsink into a special HSRM.

Heatsink Base:

The pink thermal interface material is shinetsu G 749. It feels like bubble gum but when enough heat is applied to the material it flows and creates a good thermal interface. As you can see by the photo the base is pretty heavily sanded and full of tiny areas to trap air. Unfortunately the base is not flat in both directions, and falls to the common problem of being slightly domed.