DescriptionExercising with yoni eggs will have a lot of fun and a pleasant feels, it has also been shown to improve vaginal tightness dramatically when compared with normal pelvic floor exercises. Smooth surface but with hanging lanyard design, not easy to get lose.Features- Color: Black.- Material: Obsidian.- Size: Approx. 4x2.5x2.5cm.- When you use this egg for pelvic floor kegel exercises, they have an amazing effect on your vaginal tightness. You can use them to stay tight as you get older, or even after giving birth multiple times.- Hand-made and hand-polished, without using any chemical treatments or dyeing.- The yoni Kegel exercise eggs are great for strengthening the weak pelvic.- Putting it into warm water for a few minutes, then disinfecting it with boiling water.- Smooth surface but with hanging lanyard design, not easy to get lose.