Please kindly noted that this item is sold by Mortess from Joybuy marketplace.Description This product is guitar sand shaker, smooth surface, rubber band elastic good, with steel ball inside. Just hold your hand and you can hear the music. It is also used as a traditional vibrator when playing another instrument. Suitable for every music lover, you can develop and improve your music intelligence. Features -Color: Random color. -Material: Metal, plastic. -Size: About 4.00X2.50X2.50cm/1.57X0.98X0.98inch. -The addition of the guitar playing companion and the finger sand hammer can make your performance richer and more layered. -The sound is crisp and loud, which can increase the rhythm of the music. -Made of high-quality metal and plastic materials, it is durable and can be used for a long time. -The simple and stylish design adds fun to the performance. -The groove contacts design fits the fingers and is not easy to slipping off.