Yes! The P.ball fits most! The P.ball should have a snug fit, but it shouldn't dig into skin or feel uncomfortable. For added strap length unhook the metal clasps and insert the included 5.7 P.ball Extender.
You may need to add an additional extender or strap depending on fit and resistance preference.
To purchase a replacement strap, please follow this link P.ball Replacement Strap
To purchase an extra extender, please follow this link P.ball Strap Extender
If you have any other other questions on what would work best for your particular needs, send us a note at firstname.lastname@example.org and we'll be happy to help.