Exclusively Nasstoys! Polished finish. Sturdy retrieval cord. Waterproof. Phthalates free. Material: ABS. Ball size: 1.25. Instructions for using Ben Wa Balls 1. Use the restroom before placing the balls in the vagina. 2. Insert one ball at a time. Putting lubrication on the balls will help them glide in. Women have said that inserting the balls is similar to inserting a tampon. If youandrsquo;re not used to inserting tampons or if youandrsquo;re having troubleand you should lift one leg up. If that doesnandrsquo;t workand try inserting them while lying down. 3. Squeeze your leg muscles together and then your PC muscles together to hold the balls in. The balls should push down a little bit inside your vaginaand and they will make your vagina feel andldquo;fullinch. Much like tamponsand you should eventually get used to the feeling. 4. Hold the balls inside for at least 15 minutes a day to strengthen your PC muscles. You can hold them in for hours for a better workout. 5. If any balls slip outand wash them well with soap and water and slip them back in. 6. There are several ways to remove the balls including: jump up and downand sneezeand coughand sit and bear down as if youandrsquo;re having a bowel movementand insert lubricant to help them slide outand etc. If you think you might have a hard time removing the ballsand then you may want to purchase balls that are strung onto a retrieval cord. In any caseand it is not possible for the balls to disappear inside the body from the vagina.