Tantus Vibrating Progressive Beads are brilliantly designed that will help you have the heights of rectal pleasure. A number of four beads increase lightly in dimensions from .75 inch to at least one.75 inches and therefore are perfectly spaced for pacing yourself. Every time a bead is brought out, sphincter muscles contract instantly which help to develop momentum for orgasm, by having an additional removable 3 speed waterproof vibrator to assist push you within the edge. The graceful, easy entry beads flex using the body's curves and finish by having an anchor base that tapers slightly for any perfect fit between your cheekbones. Vibrator: 3 speed removable waterproof original bullet. Safe for you produced from Tantus own unique formula of 100% ultra-premium Silicone. Simple to clean:eco-friendly, hypo-allergenic, hygienic, boilable, bleachable and is it dishwasher safe. Diameter first bead .75 inch, second bead 1 ", 3rd bead 1.25 inches, fourth bead 1.4 inches. Base .9 inch. Dividers .25 inch. Insertable length 11 inches