It's a pretty basic product, mine is black, helps remove tension with various nubs on different sides so you can choose how deep you want to go and with how much pressure. I'll use it mostly for hamstrings and lower back when I'm getting tense from a big deadlift or squat session. Or as a way to warm up when it's cold out or I'm just feeling rheumy.
It is one of the least expensive tools in the gym and I'd recommend this to just about everyone. Doesn't take up much space, and you can use points on Amazon, so really doesn't cost much at the end of the day.
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