Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: are the nunchuks real or just glass
Document: The Nunchaku came very fast, without a scratch and from what I can tell they are very durable and I think my brother will love them.
Product came before the due date. Not a scratch. Clear as can be. Durable. Solid. Gorgeous. Equal balance. And shine in the sun. Perfect weapons with beautiful detail.
Not bad at all, they do everything they're made to do. They're heavier than I expected but there's nothing you can do about that. Just the wrong kinds chucks for me
Its not very expensive, only about 20 assuming you dont have to pay the shipping which i didnt because i made a 35 dollar purchase in all. Its got a chain with a decent length to it, 7 chains in all. Which is pretty good, ive seen longer, but shorter than that is where you have a cheap pair that you cant do much with.
It looks really good, material is awesome! Color, weight, balance, chain material, everything is just as I wanted! I personally would recommend it. Now it has been a month that I'm using it, it's my favorite one, simply perfect.Just to mention, I don't think it's good for training, if you are good enough with nunchaku, you can use this one, otherwise you need to use another nunchaku with soft material.
I dont recall seeing any reviews that said it did either.
Answer: no