Ben Wa ball

Noun

 * 1)  Either of a pair of marble-sized metal or plastic balls, usually hollow and containing a small weight that rolls around, used for vaginal or anal sexual stimulation.

Translations

 * Chinese:
 * Mandarin: 陰道球, 內用球
 * Finnish: geishapallo
 * French: boule de geisha
 * Swedish: geishakula, samlagskula