ICEMAN WATER MAGNUM 3D Ice Man Water Magnum 3D New, Unused I bought two for spares, but I haven't used one. This product is an optional part for Ice Man (water cooling). It cannot be used on its own. Attach it to Ice Man and cool the top and back of your head with cold water! My personal impression of actually using this Ice Man Water Magnum 3D is that it cools the top and back of my head moderately, significantly reducing the heat, and I feel it's indispensable. However, some customer reviews mention clogging of the water channels and swelling of the water channels, but the product I use works fine and is comfortable. Please understand and accept that such issues exist in some cases before considering this product. I recommend searching for customer reviews of this product. Also, please refrain from purchasing if you are overly concerned or seek perfection.