This couples vibrator offers pleasure for 2 people and there are many different ways to use it. the vibrator has a sturdier section with stimulating nubs. you can place your stiff penis on it and it can also be used during penetration. the shorter, more flexible part is designed for anal or clitoral stimulation. with 2 powerful motors and 10 vibration settings, you'll both enjoy fantastic orgasms and amazing stimulation together again and again. the pair vibrator is made of silicone and can be charged quickly with the included usb cable.the long end can penetrate up to 11 cm and the short end up to 6 cm. clean the toy after use with lukewarm water and toy cleaner and dry it with a lint-free cloth.