Impossible to believe how realistic this toy's material is.We reached a new height in the evolution of toys' materials and we created "BIOSKIN" - as close to the human body as possible. Ecologically safe, hypoallergenic, premium material "Bioskin(TM)".Specially developed for extra pleasure seekers. First unique anatomic form of a plug designed specifically for long-lasting use. The blunted point is extremely comfortable. The base is flat to enable long-lasting use. Now YOU can stand, sit, run and do sports without taking it out! Inside Gplug Bioskin there are motors of the new generation. Stronger vibration that makes no sound at all. Six vibration modes with changeable intensity - from light tremors to intense vibration. Intuitive controls. Up to 4 hours of operation on one charge of the battery. Magnetic charger. Please note initial charging time is 2 hours. Travel lock (press ON and hold for two seconds). 100% Waterproof. Material: Bioskin Size: 3.9cm (1.54in). 1-year warranty.