Smooth threaded tapered shapeRounded tip for easy insertionComfortable plug stays in placeFlared base for easy retrievalEasily warmed or cooledEmbedded rainbow jewel baseStorage bag includedNickel free aluminum alloyBody safe & phthalate freeAvailable in 3 sizes3.26" (83mm) Length / 2.75" (70mm) Insertable / 1.33" (34mm) Width