This is a bearing kit by Avid RC for the Axial Yeti Rock Racer Kit (AX90025) and RTR (AX90026) as well as the Axial Yeti SCORE® Trophy Truck® Kit (AX90068) and RTR (AX90050).
Yeti (AX90025 - Rock Racer Kit)
Yeti (AX90026 - Rock Racer RTR)
Yeti (AX90068 - SCORE TT Kit)
Yeti (AX90068 - SCORE TT RTR)