KITWILD Peanut Massage Ball, Double Lacrosse Massage Roller Ball for Deep Tissue Muscle Massage, Physical Therapy, Myofascial Release, Muscle Knots, and Yoga Therapy (Black) | Deep Tissue Muscle Massage, Physical Therapy, Myofascial Release, Muscle Knots, Yoga Therapy

I don’t think this is rubber. It’s very slippery and doesn’t adhere to the wall Good when you’re trying to rub your back. I can make it work so I’m gonna keep it, but it is less than I expected. After using it a couple of days, the slippery is not there. It works great on the back against a wall. It is wider than regular peanuts and does more of and for the back. I’m thinking about getting another one to take to the gym.

I have tried on of these that had the vibrating feature. I liked the pressure on my back muscles, but didn't really get any benefit to the vibrations. And I didn't want to spend an extra $40+ dollars on the vibrating function. This was perfect and at a good price. Sturdy enough for me and my back. Stickers on the side have come off, but doesn't affect the functionality of it.

Its not bad. The foam is kind of stiff and its a little tall for my needs. Rolling on a thick mat can help if it's too tall for you, too. Bumps are a little uncomfortable, if it was smooth and softer I think it'd work better for me. Ymmv.

I have had back surgery at L4/L5 after repeated disc herniation. I still have pain in my lower lumbar area from time to time as well as tightness in my muscles. I have found that laying on my bed with this peanut massage ball under my back helps stretch aching muscles. I am also aware of movement in my spine that also helps quite a bit. If you want to really stretch things lay on the floor instead of the bed. That can be a little uncomfortable at first.

Much harder than I expected. If this was the hardness of rubber, like a thick tire it would be useful. It's hard plastic though. I am not a sports person, I am trying to help loosen my back muscles after a surgery left them permanently grinked. It might work better on a tougher person. One side bigger than the other is also akward, maybe there's a reason for it?