Rosy Gold Nouveau Ben Wa BallsThe Rosy Gold Ben Wa Balls are smooth metal balls and are suitable for training the pelvic floor muscles. Trained pelvic floor muscles ensure a tighter vagina and more stimulation during penetration. Both balls have the same size and are easy to insert with a small amount of lubricant. They can also be easily removed thanks to the practical pull ring. Clean the Ben Wa Balls with toy cleaner and water after use. Features Material: Metal Weight: 13. 3