The TitanMen collection from Doc Johnson presents the Ass Master. Designed for ass play, this butt plug is 7 inches long and has a diameter 4.5 inches. It will certainly fill you up! The plugs are dual density with an indestructible outer skin and cushy interior fill, and are made with our antibacterial, Sil-A-Gel formula. Black. phthalate-free PVC and Proudly Made in America.