These are Body Klip Retainers from Dubro.
These work with any electric, nitro or gas vehicles.
FEATURES: Black rubber retainer
Steel body clips
INCLUDES: Two black retainers
Eight body clips
Instructions
REQUIRES: Nothing
COMMENTS: The body clips are attached to the black strap. The strap
mounts to the the hood of the vehicle. This is so when you remove
the body clips you won't lose the clips when removed from body.
For more information, please visit this products webpage.