QLKUNLA Newtons cradle balance, science physics gadget desk decoration kinetic movement toy for home and office Heaviness at work: See how Newton balls fall and transfer weight to the device. Drop one ball or two balls. You can see the energy transmission in such a surprising way! Desk Decoration: Show off your character and express your love of science and physics with this office decoration. It can also be meditative and make observation fun! Pedagogical and stylish: Explore the visual presentation of the impulse. Use it in class and let your friends and family participate in the exciting world of physics and science! Eternal Movement: Pendulum balls show the preservation of impulse and energy, resulting in eternal movement, these swaying kinetic balls are the perfect complement to desk decoration accessories or educational utensils in schools. A good idea for a prezent: an outfit for children and adults, perfect for learning, killing boring time and stress, which makes it a good prezent for birthdays, holidays. In the meantime, it is not only a toy, but also a good desk decoration. It can be placed on a desk or shelf and will be a great backdrop in your home or office at any time after walking past it Width 14,2 cm Height 14,5cm Depth 11,9cm