this is a replica of the federal signal model 19 propello ray. the sits ontop of ecto-1 next to the siren. the print is cut into 4 pieces that will fit on an ender 3 build plate. the lense is intended to be printed in clear red fillament. there are 4 screw holes to hold the front case to the back shell. an opening has been mad in the shell and base to acomidate a light insert.