I am really getting excited about this! I do hope we will be able to buy just the "top," as I have plenty of risers. Because it is so small, it will really come in handy--one of the things I will do when I get mine is use it do do calf work. My regular step is so big, it's hard to move it close to something to hold on to for calf dips off the edge. Thanks for pursuing this request for us, Cathe!
Jeni