Master Series Prostatic Play Trek Curved Silicone Prostate Vibe. Target his P-spot for intense stimulation and vibration with this premium silicone prostate massager. The flexible, curved shaft is designed to pin point his sweet spot, thrumming inside him while the external portion buzzes against his perineum. Each bulb will slide into him with pleasure and ease, delivering a jolt to his senses. This waterproof vibe is powerful and ergonomic, made of phthalate free materials for pure ecstasy. Measurements 5 inches in total length, 3.9 inches insertable, 1 inch in width. Materials Silicone plug, ABS plastic bullet vibrator. Color Black. Vibrator requires 1 AAA battery, not included.