This is the optional Cooling Fan for the Traxxas Velineon VXL-3 Electronic Speed control - (TRA3355).

FEATURES:
Keeps your VXL-3 running cooler
Simple installation requires only snapping the fan housing on the ESC and plugging in the connector on the ESC to the fan

INCLUDES:
One Cooling Fan Unit with installation sheet

REQUIRES:
Installation following the included instructions

SPECS:
Length: 1.56" (39mm)
Width:  1.34" (34mm)
Height: .83" (21mm) including clips - .47" (12mm) not including clips