The more extreme shape of the asymmetrical soccerballs: broken into two parts, we send you the Quarterball in a set with a left half and a right half. You can play with both volumes on a boulder, screw them together or unite them with the football. Due to the different angles, you will get appropriate gripping options on the way to the top, depending on how you attach the Quarterball to the wall. Available in three sizes. The volume is offered as a set.