TubeNet

https://www.ebay.com/itm/132172033764
Not mine but I got one and it works awesome with my helicon.

They are great stands but if you have a little patience, they are often available for less than half that. A year or so ago I bought three of them + a tuba stand (new in boxes) for $200.00 + free shipping.

Just saying.

I didn't get as good of a deal. Paid around $100 shipped for mine. BTW, seller is open to offers, one could offer $50 and see how it goes.