Legendary Surface SteelSeries 63825 QCK Prism Medium Cloth RGB Mouse Pad The Iconic Micro-Woven Fabric The SteelSeries QcK is the ultimate in surface performance and innovation, having sold over 10 million units. The QcK Prism now has 2-Zone RGB lighting on the same iconic surface. Boost the engine An amazing arsenal is unlocked by SteelSeries Engine software.