Duo Balls are softened plastic orgasmic balls connected by a soft cord.
These duo balls feature a soft jelly outer with internal metal balls in each providing non-stop movement. The inner ball causes vibrations & stimulation whenever the user moves. Because the outer cases are softer than other duo balls, they are slightly quieter & less intense than the hard varieties. These balls are great for foreplay, and are also useful for pelvic exercises to strengthen the muscles.
Approx 30mm diameter.