These balls take a motor rather than relying on movement alone: a wired remote runs the vibration through both of them, at whatever speed suits. Each measures 3.2 cm across and the pair weighs 70 g, enough to be felt without being a burden. The lead keeps the controls to hand while they are in. Two AA cells drive them and are bought separately.
Specifications
- Diameter: 3.2 cm
- Power: 2 x AA batteries





































