The Black Swallowtail transmits delightful throbs through its rings and provides a nice big vibrating surface to use to pleasure someone else. Unlike the lightweight "buzzy" experience of other ring-attached vibrators, the Black Swallowtail is highly arousing with powerful, multi-speed, multi-pulse rechargeable vibraton. Recharges with a plug-through port in the base, which makes this NOT fully waterproof, but still easily cleaned with a soapy washcloth wipe. When the vibrator wears out you can replace it with the VaVa Voom.
Size matters as you are aware. The small ring is a not-stretchy 1.13" which might be too small for comfort for some. We know of some handy/surgeon-types who successfully detach the small ring for grande comfort, although that voids the manufacturer's warranty. Just sayin'.
Color: Black/black. Material: Silicone. Batteries: Rechargeable with USB cord included Size: Ring 1 is 1.13" wide, but not stretchy; Ring 2 is 1.75". Egg vibrator is 2.5" long. Butterfly alone is approximately 2 x 2.5". Cleaning & Care Instructions: Warm soapy water with washcloth, but do not get water/liquids into the charge port; do not use silicone lubricant with this item.