I bought this during the lockdown with every intention of putting my WFH time to good use but of course never used it. This listing is for the P.Ball set, I have more components available in other listings. Apparently this is endorsed by Jennifer Aniston. As per the P.VOLVE site: * A versatile and patented piece of equipment designed to do it all. * Strengthens your inner thighs and glutes. * Improves hip mobility and deepens the connection to your core. * Great for new members looking for an introduction to the Method's signature movements. * 6.5 inches when deflated, 18-21 inches when inflated. * Full inflation is 18-21 inches in circumference. If ball deflates over time and no longer feels firm, re-inflate with the included pump. (The needle is in the pump handle. Make sure to dip the needle in water before inserting.) * Includes ball, pump, extender, tape measure, instruction guide and carrying bag. * Check out the pvolve.com website for more/better info. * Smoke-free, pet-friendly home * I can usually ship same day * I can do bundle discounts of 2+ items but it does depend on the items: if the combined weight exceeds Poshmark limits I simply can't ship * Thanks for looking!