Replacement Batteries AG13 for the O Wow & Fingos 6 Pack. Dispensable battery packs for all reusable vibrators. Product Highlights: Convenient 6-packs of replacement batteries. Available AG-13 size. Discreet and easy to store. 6 pack. Standard Features: AG-13 Fits the following: Standard Bullet Vibrator, O Glow Bullet, O Wow Vibrator, FingO Finger Vibrator, FingO Glow Vibrator, Buddies Vibrator, And More. The Screaming O extras.