
Hand-blown glass ben-wa balls with 3.0cm diameter for pelvic floor strengthening. Weighted resistance training with smooth surface and temperature play.
Key Features:
Hand-blown borosilicate glass spheres for serious pelvic training
Premium laboratory-grade material never degrades or harbors bacteria
Optimal 3.0cm diameter perfect for intermediate muscle strengthening
Smooth surface glides effortlessly with minimal lubrication needed
Temperature responsive design holds heat or cold effectively