Krazy Spinner Fidget Spinner is an unusually addicting as well as a superior quality desk toy which has the sole purpose of helping your focus. Regardless of whether you are at home or at the office, the Krazy Spinner is the best fidget toy which is specifically designed to keep you in line with what's important, keeping focus and your mind off things that aren't.
The Krazy Spinner middle bearing is a Steel Bearing. And the outer bearings are weights. As you play with the spinner, the bearings will break in and only become faster and smoother. Sold with bearings installed. NO REPAIR, OIL, MAINTENANCE NEEDED - Use it right out of box. All 4 bearings are removable for future upgrades modification and customization!