Spin n' Grind Rotating and Vibrating Silicone Sex GrinderTravel Friendly Ride and Grind Toy Feel what it's like to get a rotating, spinning, vibrating shaft and a buzzing, backdoor vibe all at once with this Spin 'n' Grind portable toy! You can take it anywhere and transform any chair or couch into a sex saddle! Lay it down on a flat surface, turn it on, and enjoy 4 speeds and 7 patterns of spinning rotation and vibration from the round headed shaft! The spinning sensation comes from rotating beads that rub