Nowdays, lots of people have to work under much stress.

So they unconsciously shake their legs, twirl the pen (turn the pen with fingers) or play with bubble wrap in order to lessen their stress.

Here's fidget cube to reduce your stress ☺.

If you are much interested in it, please take a look at the link below.
(https://youtu.be/qCSaG9mCP_I)

1-year-of warranty would be provided
(you just have to pay for the delivery fee)