Crafted with the power to influence, CONTROL offers technology to enhance masturbation and elevate intimate experiences. The CONTROL Vibrating Silicone Edging Trainer was designed for ultimate solo stimulation by surrounding the entire shaft with supple FlexFit wings and powerful vibration. Both FlexFit wings wrap around and allow for a personalized fit and customizable pressure.Erectile Dysfunction Aid - Regular masturbation strengthens pelvic floor muscles, helping to prevent erectile dysfunction (ED) in men. Edging, the practice of purposely delaying orgasm, can build sexual stamina and can help with ED by encouraging healthy blood flow to the penis. Progressive Design - Created Specifically for Male Anatomy Powerful, Quiet Vibrations - 8 Vibration Modes Waterproof and Washable - Enjoy in the shower, tub or spa USB Rechargeable - 1+ Hour Continuous Run Time per Charge Dimensions: Length: 2.5 in. Width: 0.95 in. Height: 2.8 in. Package Depth: 1.75 in. Package Width: 3.25 in. Package Height: 5 in.