the chemiluminescent device is very suitable for use in throwing especially for fixed point throwing and limited space throwing application_number US 7027708 A description referring to the accompanying drawings one example of a chemiluminescent device according to an embodiment of the present invention is indicated generally by the reference number 10 the device 10 comprises an outer shell 12 as shown in fig1 the shell 12 comprises two hemispheres or half shells 14 and 16 made of polypropylene or other suitable material such as high polymer polyethylene or polyester welded together at 18 the outer shell 12 is of generally spherical tubular form and may be for example spherical oblate or prolate spheroidal or other oblong polygonal prismatic or polyhedral or cylindrical the length or maximum dimension of the shell 12 may be from about 0 5 to about 3 times the width diameter or minimum dimension of the shell 12 the shell 12 may be of a convenient size to be held in the hand of a person intending to throw the device for example a device about 3 or 4 inches 7 to 10 cm across may be suitable for many purposes inside the outer shell 12 is an inner shell that in the device 10 shown in.