This might be one of the strongest toys I have felt, my hand is still vibrating writing this. Made of silicone, the Cottontail is no joke when it comes to vibration. There are 7 strong vibration pattern you can choose from. You can also turn the gyrating shaft on and off, which is a nice option and almost make it two toys in one. There are 3 speeds to the shaft and makes your g spot feel like heaven. The toy comes with a one year warranty and is rechargeable. An easy seller.