Disclosed is a device for holding a relative angle between two timing gears. The cylinder forms a chamber for receiving a fluid, and includes an external flange extending radially and outwardly from the cylinder. The first and second wing portions each have a width, a length, and first and second peripheral edges. Applying hair dyestain to bundled hair within the spiral or helical structures provides an ability to \u201ctie dye\u201d hair strand bundles to create desired highlighting andor hair coloring. An image output unit outputs the image to which the motion of the user is matched, and a sensory effect output unit outputs a texture of an object touched by the body of the user to the body of the user. The method includes reading and decoding each element of the at least one code block to deliver an information item representative of a number of errors in the at least one code block.