GPM Racing Hardened Steel Central Driving Shaft Dog Bones For ARRMA 1/7 RC Car Descriptions: 45# plus hard steel material, bold design, from the original 5mm diameter to 6mm, more robust, the transmission is more powerful STRONGER STEEL MATERIAL TO IMPROVE THE DURABILITY AND STRENGTH WITH QUICKER RESPONSE TIMES EXTRA DUTY DESIGN FROM 5 mmDIAMETER TO 6mm SO THAT THE TRANSFERRING FORCE IS MORE POWERFUL AND FIRM Applicable models: For ARRMA 1/7 LIMITLESS ALL-ROAD -ARA109011 (dedicated)/ For Can be used in general: ARRMA 1/7 INFACTION 6S BLX -ARA109001 Single bag weight: 67g Package includes:2 x CVDItem specifics:Material: MetalTool supplies: GPM Racing Hardened Steel Central Driving Shaft Dog BonesUpgrade parts/accessories: GPM Racing Hardened Steel Central Driving Shaft Dog BonesRc parts & accs: GPM Racing Hardened Steel Central Driving Shaft Dog BonesSize: As DescriptionModel number: For ARRMA 1/7 RC CarRemote control peripherals/devices: GPM Racing Hardened Steel Central Driving Shaft Dog BonesFor vehicle type: CarsFour-wheel drive attributes: GPM Racing Hardened Steel Central Driving Shaft Dog Bones(parts & accs: (Parts & Accs