Title: Intellect fans palace square maze game balance ball 20 off Size： 11.5 * 11.5CM thick 2.5CM Material： Dutch natural wood Colour: As shown About: How long has it away from the computer， away from the office， Events hands and feet? All day typing， mouse operation， are not hands are stiff? Remember as a child how flexible body? Come and activity of your hand and eye， start your brain， not rigid， not rigid. Move， play together.