The Blue Blossom Glass Ben Wa Balls are beautiful works of art made especially for use in enhancing sensation and arousal. The ancient practice of using Ben Wa Balls helps to strengthen the pelvic floor muscles, leading to more intense sexual stimulation. The Blue Blossoms inside these hand blown glass balls are delicately crafted to make these toys a beautiful and functional addition to your adult toy collection. Approximately one inch in diameter. Satin Storage case included.