These are the Integy Silver Aluminum 4mm Heavy Duty Chassis Side Plates for the HPI Savage 25 and SS.  These are very strong, and they look great on show trucks as well.  They are very durable, and they are a must if you want your truck to handle big jumps.

FEATURES:
Silver aluminum construction
4mm thick

INCLUDES:
One silver aluminum alloy left side chassis plate
One silver aluminum alloy right side chassis plate

SPECS:
Length: 12.25" (311.15mm)
Width:   3.125" (79.375mm)
Thickness: 0.16" (4mm)