Fifty Shades of Darker Something Darker Glass Butt Plug. Sleek and firm for unique and satisfying play, the Something Darker butt plug treats you to sensational stimulation of one of your most sensitive spots. Enjoy comfortable insertion from its tapered tip and filling sensations from its contoured bulb. Made from borosilicate glass, the plug is suitable for temperature play. Simply warm or cool in water before hand. Apply a good squeeze of anal lubricant and enjoy the pleasure of anal stimulation. Includes a luxury storage bag. Use butt pug with water based lubricant to heighten sensation in play. Part of the Fifty Shades Darker The Official Pleasure Collection approved by author E L James. Key features of Fifty Shades Darker borosilicate glass butt plug. Shaped for gentle insertion with a safe flared base. Toughened glass will not splinter or shatter. Temperature responsive: warm or cool before use. Suitable for beginners. Base diameter 1.6 inches. Flared base. Circumference 4.5 inches, insertable length 4 inches, total length: 4.2 inches.