Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Balance,used a principle like tumbler,is a convenient electronic said.
It can keep itself standing so steady that you can place it near the
wall of your house to save your houses space. Beside,,you juse need
to move your finger to lay it down.At this process,Balance will start
to work,and when you release it,it will stand up again and cut down