I know so many musicians who have RocknRollers already. They're everywhere. I use mine to move my PA speakers and powered mixer. The PA is one of those "Crate" brand systems, the ones that look like shipping crates, made with solid, unfinished pine wood. - It's a real beater but the RocknRoller helps me keep what's left of it in pretty good shape without breaking my back. It also holds my Reunion Blues guitar bag and my equipment bag... no problemo.