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: Are these good for hand arthritis?
Document: These are easy to use. Comes with an instruction sheet. There are 3 stiffness balls in the set. The yellow is the easiest to use. They are a good size for my small hands and just fine for my husband's larger hands. They are good for exercising  the hands and wrists and loosening them up from arthritis.
After suffering from weakened strength in my hands and increased pain in my elbows, I've already seen a difference in my hand strength and arthritis pain in my elbows!
It's amazing at how much I have strengthened what little muscle was left. I can now write, hold a defense item, even some weight with my right hand again. I highly recommend them for strengthening, dexterity, and mobility. I have arthritis too.Side note, extra, great for stress relief. Takes that extra energy and focuses it on my hand strength! Bonus.
I bought this for my husband that just has his cast from his hand removed and he said so far is working good for him
nice recovery toy for a broken hand - easy to take with you anywhere you go.well spent money, good fun
Provides good exercises included in the instructions to strengthen hand with balls. A bag to keep them in is highly recommended to keep the dust and other items from getting the ball dirty.
Good product.Works well for after hand surgery. Not very much difference in pressures between balls though. I neded a light pressure to start with but even the easy one was still pretty firm.
The person who received the gift was ecstatic. It is very helpful for folks with arthritis - simple and effective.
It helps with my arthritis in my hands and also with Raynauds Syndrome in my daughters hands. It helps with our circulation.
Great for my RA in my hands. Keeps my hands from tightening up with stiffnesss due to my rheumatoid arthritis.
Answer: yes