Kink Ace Silicone Plug 4 inches Black. The Ace plug’s velvety soft silicone flexes just enough to comfortably slide in but firmly holds its plump rounded shape. Crafted with extreme curves to provide the ultimate feeling of fullness and a traditional tapered tip for easy insertion, this 4 inches premium silicone butt plug is excellent for training and stretching multiple sizes available. Features: tapered tip for easy insertion. Flared base for safe use. Built in suction base is stable on most surfaces. Silky smooth surface. Phthalate free, body safe. Specifications: color Black. UPC Code 782421059354. Total length 4 inches, insertable, usable length 3.5 inches, width, diameter 2 inches, circumference 6.5 inches. Material Silicone. Kink by Doc Johnson is an exciting collaboration with Kink.com to create a collection of high quality authentic fetish items suitable for long term practitioners and new initiates alike.