These roll bars will offer you much better protection for your HPI Savage truck than the stock roll bars being made from 3mm Aluminium. Contents:- Included is 1 Black Anodized roll bar for the HPI savage this is made from 3mm thick giving a 20% thicker construction than stock. This roll bar is made from high grade 6082-T6 Aluminium. Fits:- HPI savage 21, 25, SS and new SS 4.6 kits