I can't say enough good things about this toy. It is a great toy to see if you might be into hard materials, with a price that errs on the side of caution. If you like the benefits of silicone toys and you don't mind your toys being rock hard, glass is probably a good way to go.

I would say it has a diameter greater than the Doc Johnson big end, (because this is glass and therefore has no squishy give to it, but is about the same size) and has a round bubble under the head for a second helping of pleasure.

Because this is completely inert glass, it has no nasty plasticizers or harsh chemicals; on top of that, you can use any lube you like, they give a packet of silicone lube in the box but I honestly just go for the thick water based lubes.

As far as putting it in, I'll leave most of it for the experience box, but where silicone can have drag, glass plugs are more likely to go in before you are ready, so make sure you warm up slowly. Cleanup is pretty much the same as silicone, boil, bleach, toy cleaner, etc.

My only complaints are the weight and the padded bag. This toy is VERY heavy and slippery when lubed, I do not recommend standing up and walking with this toy in you. As for the bag, it's this pink velour bag, and while it is very padded, it just does not fit over the plug. It will stick out no matter which way you put it in the pouch.

On a side note, these toys seem to vary from piece to piece. Some I saw in reviews have longer necks, the stock photo has a much shorter neck.

Be careful putting this in the first few times. I learned glass is extremely slippery when lubed, and while you may think you can pop it right in, and it feels like you can just pop it in, keep it slow, in and out. If you try to put it in before you are ready, it's going to hurt as it is not forgiving like silicone.