Just in case you wanted to design your own. Perfect for a 3d printer.
No idea what "Syntra" is in this context. It could be a reference to a crew member: on other props there is mark ups for "boyd gak"; Boyd I believe is the name of a propsmen, and gak is the nondescript design bits and pieces that covers the props to make them look more interesting. So Boyd Gak is the gak crafted by Boyd.