Luna Balls by Lelo are designed to help women strengthen vaginal muscles and pelvic floor, which may weaken if not exercised on a regular basis, after childbirth or as part of the aging process. Developed as a modular alternative to traditional “geisha-balls”, Luna offers the advantage of increased resistance over time. Her movement-induced subtle vibe makes for more efficient, fun and pleasurable “Kegel”-exercising. Indeed, performing daily “Kegels” helps restrain and prevent stress incontinence, but benefits moreover include increased neuromuscular control, enhanced sensation and ultra-intense orgasms. The Luna system includes 2-28gram balls and 2-37gram balls, designed with smaller balls inside so subtle kinetic vibration is created with movement. The balls can be inserted individually or a silicone girdle is provided so 2 balls can be worn, creating more resistance. Luna System includes, 2-28gram balls, 2-37gram balls, silicone girdle, elegant gift box, detailed user manual, satin pouch and 1-year manufacturer warranty.