Abstract: Apparatus for exercising manual coordination. A ball with hooked members extending out from the ball along each of three mutually perpendicular axes, is used with a pair of ball manipulating devices, one held in each hand at right angles to each other. Each device has a flexible member rotatably secured to one end of a handle, for rotation in a plane at a right angle to the axis of the handle. The flexible member has an opening distant from the handle which can be used to catch one hook of the ball and whirl it around. The operator simultaneously rotates the flexible member of the other device with his other hand in a second plane normal to the first plane and seeks to engage a hooked portion with it and transfer the ball from one flexible member to the other and then back again, and so on.