Vibrating Progressive Beads Black from Tantus Silicone. Tantus Vibrating Progressive Beads are brilliantly designed to help you feel the heights of anal pleasure. A series of four beads increase gently in size from .75 inch to 1.75 inches and are perfectly spaced for pacing yourself. Each time a bead is pulled out, sphincter muscles contract automatically and help to build up momentum for orgasm, with an additional removable 3 speed waterproof vibrator to help push you over the edge. The smooth, easy entry beads flex with the body’s curves and end with an anchor base that tapers slightly for a flawless fit between the cheeks. Vibrator 3 speed removable waterproof Original Bullet uses 1 1.5 Volt N type battery. Safe for your body. Made from Tantus own unique formula of 100% Ultra Premium Silicone. Easy to clean. Eco-friendly, hypoallergenic, hygienic. Boilable, bleachable and dishwasher safe top shelf. Size diameter 1st Bead .75 inch, 2nd Bead 1 inch, 3rd Bead 1.25 inches, 4th Bead 1.4 inches. Base .9 inch. Dividers .25 inch. Insertable length 11 inches.