The RamPad March-able Tubes, with Fixed Pitch, are designed for use by schools and programs where a set of different size bass drums are used. The different size Tubes come designated as: Soprano, Alto, Tenor, Baritone, and Bass. Their pitch ranges are matched to the #1 through #5 bass drum tuning currently used by most marching groups. When programs are ordering, the size of the diameter of their current drums should be indicated.