It’s berry sturdy. It's sturdiness is great and it's durability is great as well. The plastic bottom is well * in. This is a product i can recommend!

It does an excellent job of stretching my ankles. Using it to work on balance for over pronation. Like a giant fidget spinner for your whole body.

I use it on laminate flooring with either bare feet or in ballet slippers and it is working wonderfully. The surface provides a lot of support and doesn't let me slip. If you're a beginner use on carpet to make it a bit easier as it is slippery.

This is a great wobble board if you don't want to spend too much. The laminated plywood is really sturdy. I wish the underside ball part was smaller so it was harder to stay balanced.

It's a great bored, however wish there was a excersize book with it. The instruction sheet that is in the box says so. Also the bottom isn't completely round. Did not meet my expectations.