This vibrator can be used for external or internal stimulation. The key word being "can". We found it to be too large of a diameter and too weak, but more on that in a minute. The vibrations are controlled by the twist cap on the bottom.
This vibrator is waterproof, so it can be used in the shower, tub or hot tub.

This is made of ABS plastic with a PU coat. I could not find out what exactly the PU coat was, so if you have a good idea please let me and the readers know. IT has a smooth hard plastic feel to it. No give or flexibility to it. I did not notice a odor to it when we opened the plastic box.

Any kind of lube may be used with this toy.

I did not care for the design or size of this. When we picked it out for our assignment, there was no sizes listed or reviews to read up on it. We went off the picture, and it looked like a great toy in the picture.

This as an insertable length of just under 4 inches. With an over all length of 6 inches. The tip has, well a tip. A pretty hard and pointed tip at that. Just past the tip is the biggest bulge, at just over 1 3/4 inches in diameter. That is followed by two small ridges. The ridges are about 1 1/2 inch diameter.

Size wise, this toy is just too big. It would be ok if it were made of silicone, or even rubber. Those materials have a lot of give to them, making it a lot easier to insert a bigger toy. But because this one is made of ABS, there is no give at all. It is very hard and unforgiving to your tender areas.

This has just one function. It vibrates. Only vibrates. There is little difference between low and high settings. I could not feel any change from when it first turns on and full on. The vibrations are controlled from the twist cap on the end of the vibrator. It is pretty noisy, at least for us. I think that the only toy we have that is noisier would be our Hitachi wand. If you where using it behind a closed door, I feel you would be safe as it could not be heard.
There is a nylon o-ring on the battery cap that makes this vibrator waterproof. Nylon will hold up to abuse more then a rubber o-ring. So this should stay waterproof for a while.
The vibrations are pretty week on this one. We were not impressed at all with the power.

Because this is made of ABS and waterproof, you can wash it under some warm water and soap. I would not boil it or wash it in the dishwasher like you could with silicone. You could also use some toy cleaner if you had some. Storing it is pretty easy. I have just been throwing it in the drawer with no problems. It does not collect dust or lint easily. But if it did, you could just give it a quick rinse with water.

This came in a clear plastic box. I cant remember what was printed on the box, so it could not have been that catchy. You can use the box for storage, but we just threw it away.