arrma gearbox case set hd 6s, arac5006 arrma this high-quality heavy duty gear box case set provides a direct replacement for your kit item.features:composite material for long-lasting durability and increased crash resistance - steel input sleeve for precision fit and increased bearing durability - moulded 'arrma' livery for cool looks and quality assurance - precision manufactured for consistent screw fitting and servicingincludes:1 x main gearbox case 1 x gearbox cover 1 x roll bar retainer 1 x rear brace / wing mount holder