Thank you for viewing. I am selling these items to declutter. As shown in the third photo, there are various hub shapes, so I hope you can use them by adapting them to various Tamiya off-road cars! However, please research the compatibility yourself. I purchased the parts in the second photo because they can be used on chassis that don't originally have hexagonal hubs, but I haven't actually used them, so I don't know. Please consider these parts as an extra. All items are new and unused! Thank you for your consideration!