Newtons Cradle Steel Balance Ball Physics Science Pendulum Early Development Educational Desktop Toy Gift Office DecorationNewtons Cradle Pendulum Balance Ball Perpetual Motion Physics Decor Gift Face Cleansers You can tap the touch

You can tap the touch screen button to switch 3 light colors and long-press the touch button to dimming to meet whatever your needs/preferences

[Eye-Catching Dinosaur Look]: Boasting a dinosaur appearance with adorable stickers

so some boards do not have numerical markings on them

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Newtons Cradle Steel Balance Ball Physics Science Pendulum Early Development Educational Desktop Toy Gift Office DecorationNewtons Cradle Pendulum Balance Ball Perpetual Motion Physics Decor Gift Face Cleansers You can tap the touchDetails: Product Features 1. Strong Line: Our newton cradle use a high quality nylon line that is strong enough to not be broken easily. 2. Black Wooden Base: The hard wooden base can keep the smooth operation of the newton's cradle balance balls. 3. Swing Time: The balance balls continue in perpetual motion for only 15 25 seconds due to the resistance of the air and friction, but it won't influence the effect of playing although it can not reach the