Master Series Mammoth 3 Bumps Glass Dildo. Penetrate yourself with a beautiful glass dildo, distinctly shaped for explorations of ecstasy! The three bump design allows you to move at your own pace as you pleasure yourself vaginally or anally, savoring the smooth, hard material. This shatter resistant glass is perfect for experimenting with temperature play, heating or cooling the dildo in water before insertion. Because it is non-porous, you can always ensure a thorough sanitation with mild soap and warm water. Glass is hypoallergenic and can be used with any lubricant of your choosing. Measurements: 10.25 inches in total length, 9.5 inches insertable. 2.25 inches at widest insertable diameter. Material Borosilicate glass. Color Clear.