If you have ever looked at the Fun Factory Smartballs or any kegel balls and wished you could put them in your butt, we now have an anal safe version! This plug from Fun Factory has two hollow balls that have small weights inside them so they move and rotate when you move, thrust, or through using a vibrator. A slim, comfortable base keeps the plug inserted safely. Made of 100% silicone and ABS plastic in Germany.

Top ball: 1.3" (3.2 cm)

Bottom Ball: 1.4" (3.6 cm)

Insertable Length: 4" (12 cm)