This is a set of three model rocket motors manufactured by the Him Yuen Yick Kee firm in Macao and packaged for retail sale. They are made of pasteboard and contain non-explosive propellant. There are short strands of igniter wires in each. Each motor is used only once.
G. Harry Stine donated this artifact to NASM in 1973.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.