They held mine and its 25" with the ballhead removed, but I didnt need to take it off at DHS, or Epcot! I did the math before I left and came to the conclusion that corner to corner (rolling offset we call it in plumbing) but without remembering what measurement goes where, fitting it diagonally will either fit, 30.25" or 26.6".... either way you arefine. The only place they wnt fit for me anyway is MK, but they will tag it and stow it for you if it doesn't...