It's about 5 inches long.
It is kind of squishy.
You hold it in your hand with your fingers.
It is a must have if you have cramping.
GET YOUR MIND OUT OF THE GUTTER!
Does this image give you a better clue?
I found this at the Marukai Superstore which is similar to the 99c stores (except items may cost more). This was $1.50. I don't read (or speak) Japanese, but I can see. This is used to help add bulk to whatever you are gripping so you can hold things easier (and it's non-slip). Great for people with arthritis or other fine motor problems. Me being me, I'm always on the lookout for stuff like this. I find it especially great for crochet hooks. It works so much better than the puny things they sell in the craft stores and pencil grippers. Just thought I'd share.