Accessories:Hex Adapters Converter-2pcsStainless Steel Cap Head Screw 3x20-12pcsOriginal Name / Part No:LOS43033Part location:Wheel hub hexDoes this product replace a specific part or function?yesProduct major function & usage:Connecting the hex to the wheels£¬and wider wheel trackMajor advantages of upgrading to this product:1. Made with a light material high tensile strength aluminum 6061 T6 for great sturdiness.2. Original thickness is 10.5mm, this part is upgraded to 15.5mm for wider wheel track in order to run smoothly and more stable.