Canister is made of lightweight 6061-T6 aluminum with brushed finish High-strength aluminum rivets and R-304 Shorty features steel Allen head screws for easy disassembly and repacking Double-walled mounting brackets Exclusive E-glass pillow packing PC logo detailing Carbon-aramid fiber silencers feature a carbon-aramid fiber shell, titanium tubing and titanium end caps; optimum performance gains while reducing weight