This is a Gmade 51100 R1 Front and Rear Portal Axle Set. Features: For R1 Rock Buggy, Material: Strong composite plastic, Color: Black. Manufacturer: Gmade. Model Number: 51100. Category 1: Other Scales - RC. Category 2: Wheel Assembly. Availability: Ships in 4 to 10 Business Days. Trainz Product Id: 12358452.
eBay