Note: "A Single Kit" is enough to do one processor in your console but you have 2 processors! We highly recommend doing both for maximum reliablity so you should consider buying 2 of these.
A single kit contains:
4 x 12mm Cheese Head Screws
8 x M5 Nylon Washers
16 x M5 Steel Washers
Thats all the hardware you need to do either the CPU OR the GPU. As stated we recommend getting 2 kits to do both at the same time. You might be able to get by with only one kit for the GPU so you make the call one kit or two. Tools that are necessary to install the kit, 360 opening tool, T8, T10, screwdriver, 1/4" nut driver or wrench, 13/64 drill bit and drill. (Don't forget the heatsink paste!)
Here is a link to Llamma's X-Clamp Ring of Death Fix tutorial.
****Note new lower price on pairs, for best reliablity we highly recommend installing a pair of these and find that some customers become confused thinking a single is a pair! With the magic of our updated shopping cart we lowered the price on the pair! ****