I have one of these. It’s the nuts - lightweight, low profile, the box fits in the footwell if needed (eg on route to sprints).

https://www.frost.co.uk/aluminum-do...dr6m-9wIVk-7tCh0LqgaBEAQYECABEgI5efD_BwE

You can get them from a few places - this is just an example reseller I found on a quick Google - not who I used.

You can get colour coded, aluminium stands to match.

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