A simple ball

I bet this just looks like a simple ball to you. Probably most have one of these to play with their dog. But for me it is more than a toy, it is a pain reliever. I use it to work on my back when it is spasming. I didn't have one at the office and I needed one today. Luckily there is a dog boutique across the parking lot. Now I have a ball and it even squeaks!
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