Sling the twins into this testicle bag for the sensation of a snug hug, or heighten stimulation by adding a bullet vibe. Attached to an adjustable cock ring, use the toggle-hold loosely to keep the ball bag in place, or tight to help boost your boner. Bad Kitty's ball bag is a treat all by itself, but a bullet vibe holder at the bottom of the scrotum sack allows for easy customisation with a vibrator or weight.