The Fun Factory Dark Violet Real Stronic is a sex toy designed for internal stimulation. It is a pulsating vibrator that imitates the movement of real penetration. To use it, it is recommended to apply water-based lubricant to the toy and intimate area, turn it on and select the desired speed and vibration pattern. Then gently insert it into the vagina and experiment with different movements to find the most pleasurable stimulation. Always remember to clean the toy before and after each use.