Sensory play with comfort in mind. This pliable plug features stainless steel interchangeable head rings and a stainless steel tip. The shaft is hollow silicone, which bends naturally, affording comfort and flexibility. The cum through feature assures ultimate satisfaction. Made entirely of the most hygienic, allergy safe, and high quality materials. Measurements Plug, 4.2 inches in total length, 3.75 inches insertable, 0.3 inches in diameter, Ring arm 0.9 inches in length Large ring 1.2 inches in diameter Small ring 1 inch in diameter Material Stainless steel and silicone