Try checking out www.rollingriser.com .

I have one of these risers and they are awesome!

They are really space saving for storage, and I don't need any tools to take it apart or put it together.

After I get my drum kit set up off stage just how I want it, I can roll the whole riser and drum kit wherever I need it. No problem!

These would be great for keyboards or other instruments also. Check it out and see what you think!

Shelly