It just might be the most clever trainer plug ever created. Three sides, in graduating diameters and with its own unique surface, so you can start small and finish big! Grab the ample middle section for play, and begin with the 1.25andrdquo; diameter, moving up to the 1.5andrdquo; and finishing with the 1.75andrdquo; jumbo. One plugandrsquo;s ribbed, oneandrsquo;s nubbed and oneandrsquo;s beaded for three distinct sensations. And no seams of course; just body-safe TPR for no worries.