Pelvix Concept weights are ergonomically shaped and can be easily inserted into the conical, velvety Pelvix silicone container. This container adapts perfectly to the vaginal walls without being noticeable or audible during wear. You can discreetly and unnoticed complete your daily workout during any activity - in the shower, on your way to work, or in the evening on the sofa. This makes pelvic floor fitness incredibly easy. The package includes three balls (15 mm - 29 g, 18 mm - 37 g, and 22 mm - 54.5 g).