This is a pair of Integy Purple Aluminum Upper Suspension Arms for the HPI Savage X, XL, 21, 25, and SS trucks.  As you can see in the picture, these look awesome.  These will work on the front or rear of the truck.  If you would like to upgrade both the front and rear of the truck to these arms, purchase a quantity of "2" sets of these.  These are very strong, and they are a must for a serious Savage owner.