Plastic Counting Tool for Mobile Phone Perpetual

Description:

- Classic Executive Desk Toy - Revolving Swing Balance Balls Perpetual Motion Desk Ornament

- Powered by 4pcs AA batteries or USB, move lightly, it would keep going on rocking around until you stop it or power off ( Batteries are not included )

- Kids educational physics science toy, the principles of Conservation of Momentum and Energy

- Suitable for various Smart Phones, it can be shaked automatically and you will earn thousand of steps per hour easily

- Great ornament for home or office desktop

Specification:

- Size(L x W x H): Approx. 14 x 17 x 19 cm/ 5.51 x 6.7 x 7.48 inch

Package Includes: 1 Set Perpetual Motion Toy (Batteries are not included)

Note: Due to the manual measurement, please allow 1-2mm differences in size Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand