These are body mounts for the Tamiya Stadium Blitzer.
Handy for doing a Blitzer Beetle to Stadium conversion as the Beetle Blitzer kit does not come with the Stadium Blitzer body mounts parts tree.
I've only used these on a shelf queen so not sure how durable they are but you can increase the number of outer layer or infill density as required.
Very quick to print.
From mounts need some simple supports, rear mounts do not.
The author marked this model as their own original creation.