Pearl LG-04S Stop Lock Complete

From floortom legs to percussion rods, these Pearls will be able to function as both a memo clamp for adjustment heights and additional clamps, as well as an extra clamp security.

It's all about being able to break down your set and put it back up elsewhere exactly the same, quicker and easier.
They are not expensive and there are not much cheaper alternatives out there.
That's why they're sold out often.

Should have a couple of these. I advice buying 1 or 2 extra on top of what you need right now.
Especially when you're using rod-clamped attachments on your drums, but only for the 9,5 mm size.