Beyblade Round Shell MS Frame

The other day I was commissioned to make round shell MS, so, here's the gimmick.
The point of this frame is to mimic Round Shell MS's running core, rubber weight core, of which is capable of being used by itself, as a primitive bey-wheel. This frame is wide enought to actually keep the intended gimmick of being rolled. Just slap it onto your preferred core disk and let it rip.