Yes. One piece. Pull back Foreskin, wrap and "load". Holds the piece in place, voids "the drop" and is removed after standing up.
Based on my pissing pattern, I would say around 600 pieces a year. So 2-3 rolls?
I favor BD's so cleaning up the rear is really clean too. I theoretically could wear my underpants/boxers for more than a day, they don't smell after a normal day.
Intimate Hygiene is key to avoid yeast infections or bladder inflammation for partners of the opposite sex. Don't know about same sex relationships, but no one likes a stinky dick (no kink shaming).
Edit: Get an ass shower if you don't have space for a BD. Game changer in well-being, albeit a little awkward when having guests who don't care for stinky butts.