5-in-1 Finger Vibe offers 5 different rhythmic patterns of vibration • Compact, wireless design fits right on the finger • Four interchangeable loving sleeves • Each sleeve has a unique and exciting shape • Discreet design is perfect for travel • The vibe fits most fingers • Phthalate free • 3" x 1" x 1" (7.5 cm x 2.5 cm x 2.5 cm) Battery Info: Uses 4-AG13 batteries (8 included)