Improve performance with this silicone sleeve for vibrating penis. This penis sleeve that improves erection and promises pleasure is Made of soft silicone and secures in place using a ball loop. Take her to climatic happiness by activating the vibration part to directly stimulate her clitoris. The elastic sleeve hugs your penis for a stronger, longer-lasting erection, giving you more happy moments! FEATURES: Function: 10 vibration functions Power: 1 AAA battery Material: ABS silicone Color: Blue Packing size (mm): 210*110*70 Pretty Love manufactures high quality products. All products are designed in the United States and have a 1-year warranty against technical defects. The pleasure is assured!