This is the GYMAX Balance Board: a 500lb rated wooden balance board that helps you work on your balance for skiing, surfing, yoga, and other sports. It has a 4-inch diameter cork roller that doesn’t damage your floor. This balance board is made of 8-ly birch wood. It provides you with enough support to try it with or without shoes.
You can use this balance board to work your reactive muscles and eliminate back pain after prolonged sitting.