This kit has 3 tapered plug sizes to move up from small to large and achieve a comfortable stretch! All feature a sturdy firm ring at the base for safety and easy removal. The Ultrasilk Silicone, with its silky smooth feel, warms with your body heat beautifully. The kit has small (3 inches), medium (4.5 inches), and large (5.25 inches) plug sizes that add new sensation during solo or partner play. Made with smooth, body-safe silicone, this plug contains no phthalates, paraffins, or latex.