I think they call them universal sizes as opposed to the power tom sizes you have. Most fusion kits have the universal sizes (which are usually 1 to 2 inches shorter than the power toms). Some of the fusion kits offer floor toms that are 12" or 14" instead of the 16" standard. Of course the floor tom isn't going to be an issue as far as positioning over your kick drum but the smaller depth is good if the floor is mounted on a cym. stand. like on many of the fusion setups.