A curvy, thrilling, satisfyingly sturdy edition of the Master Tool collection, the Trainer #4 is, like the rest of this man-loving line, extraordinarily durable, comfortably suitable for long term wear, and made proudly in America. Shaped into a bubbly set of three gradually larger bumps, the deliciously stimulating widening and tapering of the shaft stems from a smooth, glossy, spherical head that's positioned to tickle the nerve-ending packed prostate perfectly once fully inserted. The Trainer edition is sized for novice level manageability- precision tapering, gradual widening and a nice slim neck combine to make the 4 easy to insert, simple to maneuver, and comfortable for longer term wear, thanks to a nice flat base. Made from a safe PVC with an all-over slick gloss, the surface of the Trainer gets fantastically slick with the addition of lube, both water and silicone based formulas will be compatible. Under the smooth, firm outer layer lies a core of Doc's signature Sil-A-Gel, this antibacterial jelly lends subtle flexibility to the texture of the Tool. Phthalate free.