If you've never tried anal play, these Dynamic Duo Vibro Balls are just what you need to explore the amazing world of anal stimulation. The Vibro Balls have a diameter of 1.25" and feature a sturdy retrieval cord for safe and easy handling. The sleek weighted balls are self-pleasuring and continue to vibrate with each movement of your body. Even the slightest tremble will activate exquisitely silent vibrations that never require batteries! Cleanup is a snap after the fun with the included Refresh Toy Cleaner and warm water. Enjoy the thrilling sensations of anal pressure and pleasure by popping one ball in at a time, inserting as many as you feel comfortable with before gently tugging the sturdy retrieval cord to release each ball for even more stimulation.