Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Is the inside stainless
Document: i thought is steel in side i am very disappointed wish i did not ordered it.black and plastic inside .thanks .
I will continue my search for a stainless 24oz travel coffee mug that would fit in my car cup holder.
The actual mug is plastic lined and has a wider plastic lid. I wanted a solid stainless steel mug with a pop off lid, but this one has a screw on lid. There was no way to find this out without buying it. When I checked the options for getting a refund, there was no option for &#34;the picture was misleading and it's not what I thought it was going to be&#34;.
I was SO excited to finally find a stainless 24oz travel coffee mug that would fit in my car cup holder. I had high hopes for this Trudeau 24oz travel mug. Unfortunately, it has been a disappointment. The cover leaks - I thought maybe I had over-filled it so have been very mindful of not filling the cup to the cover level - alas it still dribbles coffee through the seal. Also, the bottom is "tippy" because the rubber ring on the bottom has a bump in it.
I needed a new coffee mug as I left the old one in the train station. I like a big coffee mug and this one seemed like a good replacement. I was wrong, the twist cap comes loose and the coffee comes out all over my shirt. The coffee inside was not even insulated, it got cold in as little as 20 minutes. It was too expensive and totally not worth it! Do not buy this mug unless you want to give this to someone as a gag dribble mug.
Total waste of $$$ - Don't buy thinking it will be better than one 1/4 the price - it's worse. Poor quality, leaks, etc. AVOID! !
Too Top heavy! Too small at bottom! I knocked it over all the time! So I don't use it now!
This mug was purchased for my boss: the world's pickiest, most spoiled, forty-something toddler ever. According to him, it is the BEST coffee mug ever made (trust me, he's gone through plenty). He doesn't trash it, but he's not exactly careful with it, either. It's had some hits and drops and still looks like it did when it first arrived. Thankfully, it is offered at an excellent price as now my husband wants one, as well!! Excellent product! !
This is just another great product from Trudeau. Holds all the coffee I need and keeps it hot. Fits in car cup holders great. I have always liked the open and closed position on the top to keep drink from spilling. Amazon has the best prices for these mug.
This cup leaks and the top is very difficult to open in order to fill it.
Answer: The inside is plastic. I bought it for my brother and he loves everything about it (the cup, not the plastic).