Rolling Hub of AsgardHub lifts are getting too easy for you? Or you know your thumbs are your weakness? This rolling hub will challenge you like nothing else. Place your fingers on the plate side, and your thumb on the roller side. As you lift, the roller will force your thumb to work extra hard to prevent it from uncurling and losing the lift. The length from the edge of the roller to the far side of the plate is equal to the original diameter of the hub plate, in order