The PX4 Sirius is the latest evolution of Play's juggling club range. Technical changes and modifications make these the most advanced clubs on the market. At the heart of the PX4 Sirius is a fibreglass core. This makes the club super rigid (much more so than the PX3 range). Due to an extremely innovative design, the new PX3 and PX4 juggling clubs have no staples, tape or glue.