Doc Johnson OPTIMALE- Reversible UR3 Stroker- Rollerball- Clear is a realistic stroker manufactured by Doc Johnson. Extremely stretchy, it can very easily fit different men. Phthalate and latex free, this particular toy is crafted from body-safe TPE materials. Best of all, it even comes with a series of massage beads for added stimulation. This stroker has dual openings with different textures. It is extremely easy to clean and can be used with water-base lubes.