Dorcel Fun Bag Testicle Vibrator - BlackFUN BAG is a testicle and penis stimulator that improves erection and delay ejaculation. Super stretchy and comfy, it effectively stimulates your testes, penis and perineum. Simply wear your FUN BAG at the base of your shaft to envelop your balls and play with the nine vibration settings. With your partner or solo, entertain your balls with good vibrations! Dual Stimulation. Soft silicone. Ergonomic and comfortable to wear. 9 vibration modes. One size