Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: What are the size?
Document: I agree with the previous review, size does matter as well as material. Please add that to your description. Thanks
So I've been looking for a while for good, inflatable foam dodgeballs. The product description doesn't mention it, but these are 8.5 inch balls - the perfect size for adult leagues (also perfect for children). For the price, they're unbeatable!
I've used this set of playground balls for the last few months and they have worked perfectly for our youth (kindergarten - 5th grade). They use them to play dodge ball and only used inside in a gym. I don't recall the exact diameter, but they are on the smaller size compared to ones I used previously, but work perfectly for the elementary aged kids. Easier for them to hold and throw.
this was the type of ball I wanted but first they sent two smaller ball then too big of ball I'm the one in the middle is the one I want and still have not gotten it price is overpriced
Very disappointed in these balls. Two had leaks in them within the first week. I will not order these again.
They are not &#34;soft&#34; rhino skin or foam. They have more of a rubber feel which is not good for grade school dodgeball.
These work great as playground balls, but these  are not the rhino skin foam balls that you might be looking for. If you are wanting the foam balls make sure you get the dodgeball version.
These were a great buy. The rhino skin really makes gripping easy and it doesn't hurt so much for your typical game of dodgeball.
These are not "dodgeballs". They are playground balls just as the description says. Also, there is nothing "soft" and "foam" about them except that it says soft foam on the outside of the ball (not sure why--they are like any other playground ball). That being said, they are good quality rubber inflatable playground balls.
These are a great items. My sons loved them. They played dodge ball, kick ball and four square. So glad I chose this set.
Answer: yes