"The Orbita is designed to come apart for a few reasons. The first is that Cyber-E-Sport provide you with two different feet rings. The default Red ring is the n00b's ring; it provides more grip to allow you time to get a handle on the fact that this mouse goes around in circles under your hand. The second ring is a Blue expert or fast ring. This is the one I prefer but I did have to go back to using the Red ring for a little while longer as I did find I was moving the mouse ever so slightly when rotating by accident."