gloglow newtons cradle balance balls, colorful led light pendulum balls science physical stress relief toy for home office desk ornament gift(battery not included)(s) gloglow <br> <br> specification:<br>item type: balanced balls toy<br> optional size: s, ms: approx. 12 x 12 x 9cm / 4.7 x 4.7 x 3.5inm: approx. 15 x 15 x 11.5cm / 5.9 x 5.9 x 4.5in<br> color: fuchsia<br> battery: 4 x aa batteries (battery not included) <br> <br> package list:<br>1 x balanced balls toy <br> <br>