The Smartballs Uno has a tapered tip and an indent at the bottom which makes it easier to insert. It's also coated in smooth 100% silicone with a silicone removal cord. Like all Smartballs, this version provides internal stimulation with the continuous motion of the ball inside and is also great for strengthening the pelvic floor. The single ball style is perfect for people with a titled or dropped uterus, or who otherwise feel that a longer toy is uncomfortable. 

Ball Diameter: 1.4" (3.6 cm)