Overall, the balance board makes a good impression. However, it is very easy to keep the balance for sporty people because no hemisphere is on the bottom, but rather only a rounded base. The material is very robust, I mean but it bends with my 80 kg yet light. Conclusion: definitely suited who know such a device vll out of rehab for beginners.. If you like it a little more sporty, sophisticated and beautiful should the big brother of wood (there are from the same manufacturer) for sale.