Fantastic product. I purchased this product because silicone is much safer than the jellys used in most rabbit vibrators. It's waterproof and never needs new batteries. I came harder than I ever have before with this vibrator. Only downside is the fact that the vibrator only has 2 settings high/low and the spining part only has 1 speed. It will reverse direction, but i can't seem to figure out why that would be a viable feature.