Instruction: Answer the given question using the supporting document.

Input:
Question: What kind of loose tea infuser does this come with? (i.e.  a ball that floats around in the pot, or the kind that sits on the rim under the lid?)
Document: The infuser appears to be made of stainless steel wire and it goes sufficiently deep into the pot to guarantee that loose tea would give you a brew even if you don't fill it to the rim.Both the black plastic that surrounds half of the glass bowl and the glass look and probably are 'cheap'. This is not the kind of object you would display with 'the crystals' or your antique Chinese porcelain collection.
Years ago I was bought some fancy loose tea leaves as a gift and as I had no way of infusing them I bought one of these teapots. It has a heat resistant glass pot, plastic handle and lid and a stainless steel mesh central infuser. You pour your leaves into the infuser, pour in your hot water and hey presto, one delicious cup of tea.
This is exactly what I was looking for. It is perfect for small loose teas since the strainer is very fine. Also, it truly holds around 5 cups. This teapot is sturdy and the lid does not fall off when pouring. I am very pleased with it!
The pot leaks in that there is no real spout as one would expect in a tea pot. Instead, the water dribbles out of the tiny and very short spout as well as the area around the lid, which is not a strong seal. As a result, I have puddles on my table when I try to pour out a fresh cup of brewed tea. It is an attractive pot, but the utility is unsatisfactory.
I have read the reviews listed here and I will try to address some of the concerns.1)  The tea infuser as the directions DO indicate is used for loose tea. The directions on how to use the flowering tea are actually right on the box itself and I am unsure how someone could miss it. One must actually read the loose directions that come in the box to uderstand how to use the tea infuser for LOOSE tea which is in fact what a tea infuser is used for.
Just remember that traditional tea cups are only 6 oz!Usage: I followed the instructions but it definitely didn't "bloom" well. In fact the ball floated straight to the top of the pot and bloomed down. Perhaps it was a faulty tea ball?I haven't used the loose tea filter yet but it looks pretty well designed. I usually use a french press for tea but I may start using this instead because it is a little easier to clean.
I was taken by the minimalist design of the pot and liked the clear view of the tea and tea flower. The pot looks small but holds a surprising amount of liquid. The black material is plastic, the only thing I don't care for is the plastic sound when you close the lid but I like that the material doesn't burn my hands. If the infuser discolors as other reviews have said I will happily replace that one part.Overall I highly enjoy this teapot.
This tea pot Gives you flexabled of making tea different methods. make with tea bags so-so tea or flowering tea that you can see or Make full 40 ounce of great loose tea. It works. They include the infuser for making great loose tea. you do not have to find one that works this one fits perfectly they where made for each others.
I actually like using this infuser to drain the pot for the last cup without getting all of the loose tea bits mixed in.2)  40oz is 40oz. It makes about 5 cups of tea. I am talking about actual tea cups not going out and buying a 32oz Big Guld and calling it a tea cup.3)  There is a plastic shell that does partially encase the pot...go ahead and take a look at the picture. I have mixed feelings on this.
This is a cool idea for a product!It's a sturdy container, but the only thing was that the metal that the loose tea infuser was made of was a bit sharp and could have been made better.I think the idea is that you put the flower bud in, and each time you add more water, (Ive done it twice today) it blooms more.
Answer: Sits on rim. It is plastic though. The black parts of this teapot are very lightweight plastic and the teapot is rather small.