1.Why roller chain is better for focus than a spinner: you can fidget with it without actually looking at it, whereas the spinners require more of your attention. You are able to focus on other things better than with the spinner. When using the spinner, you have to focus on it more. Spinners are great fidget toys and fun to play with, but they are a definite distraction in the class, meetings or office. Therefore, maintain a good focus, defeat anxiety, adhd, add and boredom with this fidget toy.