The Yomega with a Brain is a Teflon transaxle plastic yo-yo with a clutch. It is constructed in the "Convex" or standard design. The Teflon transaxle gives this yo-yo long sleepers and the clutch pulls the yo-yo up at the last minute so your yo-yo does not get stuck at the end of the string. It has a fixed gap width that is set at a good place for most yo-yo players. It is not a great looper.