Rhino Skin Soft-Eeze Volleyball Set Of 6 porter athletic An audio sensor is worn

An audio sensor is worn on the wrist like a watch and then plugged into your time machine

Built-in goal leveling feature

Tank style anchor has a 4-3/8" W x 3-1/4" H opening ti fit over any round or flat rear crossbar

The Spike-It is used by volleyball coaches throughout the world to develop and refine the skills of spiking and serving

Rhino Skin Soft-Eeze Volleyball Set Of 6 porter athletic An audio sensor is wornRhino Skin Soft Eeze Volleyball Set are perfect for beginners. Soft easy to grip Rhino Skin tacky cover balls that are safe for beginners. Made of durable Rhino Skin with a rubber butyl bladder good for indoor or outdoor play. Set of 6 colors: Red Black, Orange Black, Yellow Black, Green Black, Blue Black & Purple Black