We designed the Sud Stud to be relatively small compared to most popular soap bars. During the early stages of the soap, the sleeve will expand to fit the soap bar. Over time, as more soap is used, Sud Stud will slowly contract with the size of the soap. This will keep your soap bar nice and snug within the sleeve for as long as possible. But of course, once you reach that awkward soap size, you can always simply slide another soap bar into the sleeve. No more throwing away soap once it reaches the small and unusable size!