The G-Vibe G Jack is made of revolutionary Bioskin material, the most realistic toy material ever created. Being 100 percent waterproof, G Jack is great to play with in the bath. Features six vibration modes with changeable intensity from light tremors to intense vibration. G Jack features a magnetic charger so now charging is super easy and smart. Contains up to 4 hours operation in one battery charge. Color Black. From Funtoys.