This is the New Era Super Duty CNC Machined Bash Protection System for the Traxxas Revo truck.

This what New Era writes about their bash guard cage:

Protect your investment, with a SUPER DUTY CNC machined Machined bash protection system. Guards your expensive engine durring a crash or a roll over. Will clear a 14 fin head on the engine. You will need to modify your stock body slightly to fit over it. We cut out an area 2 inches by 4 inches. Fits with .21 to .28 conversions and larger tuned pipes. Uses stock body mounts. Weight: 9.9oz

Bash Protection Cage Kit Includes:

MADE IN THE USA!