Smart invention! The massager is very simple but effective way to sooth the neck muscles. You can controll the intensity, but be careful not to over exert pressure creating discomfort instead of relief. It really works! No more sore neck muscles! But be gentle.I absolutely love this neck massager it came really quickly and is amazing to work out stubborn knots on neck. Not even really complaining but I believe mine came already used it has scratches and there was some fuzzies on the roller balls not sure if it was just from packaging or if I didn’t read correctly when checking out but just wanted to share! Great buy though!No instructions on how to use or how frequent you can use the item. Otherwise it does great on deep tissue type massaging.I take this with me everywhere since I got it and I swear I and everyone else love it. We all work in a sitting / slouching office environment and this is amazing for the neck and really anywhere on your body. I use it on my legs and arms tooOverall, this product is pretty good, especially for the price! I bought it after seeing similar products recommended in several YouTube videos by individuals with chronic pain (the product they would link to was no longer available). I had really high hopes for it based upon the glowing recommendations!While this wasn't quite the miracle device I was hoping it was (note to self: pain relief products _never_ are as good as you want them to be), it was worth the money and I don't regret adding it to my arsenal of products.I was hoping I would be able to hook it around my shoulder and collar bone in order to get into my shoulder blade area, but unfortunately I haven't been able to find a way to do that that isn't exceedingly awkward. Definitely much better suited for use on the back of the neck and upper shoulder area.At first I thought the balls were able to roll in their casing, but after using it for a minute or so when it first arrived in the mail, one of the balls popped out and rolled across the floor! Thankfully it was very easy to just screw back into place, so it wasn't a huge deal, but that did make me think that maybe the balls rolling was not an intentional feature. That being said, I did prefer the way that felt, so I do sometimes loosen them slightly and use it that way. Aside from that one time, I haven't had that happen again, and the materials themselves are very sturdy plastic, so I'm not worried about damage to anything if it does happen again.Overall, I'd recommend giving this product a shot for managing chronic pain/tension in the neck!As someone who has suffered from severe neck pain (especially where my skull and neck meet) this is so relieving and wish I had found it sooner!!This device is perfect if your neck or shoulders hurt. It’s the best thing I’ve ever found when I get knots in my upper shoulders or pain in my neck. I love that you can really squeeze in on spots of pain and also roll over the shoulders/neck to massage. Great item if you experience neck and shoulder pain & who doesn’t with all of us looking down at our phones all the time?It's amazing and absolutely gets to the sore bits on your neck and top part of the shoulders.I have calcifications in my shoulder which makes it weak so I was concerned I wouldn't get the benefit as I wouldn't be able to apply much pressure. I needn't have worried because you honestly need only minimal pressure.My only regret is that I didn't buy this sooner!I bought this based on the reviews and because I had a horrible persistent neck pain. It looks a bit cheap etc but is actually pretty perfect and really allows you to apply pressure to all sorts of areas and in different angles of your neck (and upper traps). Have been using it a few times a day for a few weeks and the neck pain is gone which is worth the price of 100 of these things. May not work for everyone but did for me. ps you don’t get any instructionsTook a few attempts to get the hang of, but once the technique was down it felt great. The rubber balls do occasionally fall off mid massage but they are easy enough to screw back on. The plastic has a nice flex without fear of breaking, I am sceptical on how long that will last.All in all a great productWow love this product! It definitely hit the spot! Haven't got much neck pain at the moment.But I found it extremely useful on my calves for stretch and manipulating my calves.With the long arm handles you can get loads of pressure on your muscle pain.Brilliant ?I’ve been looking at this for a while now, very sceptical about it, even though it’s only around £10. Wish I had had it 20 years ago. Really does the trick. I’ve had a bad neck on and off for years.This just gets to the areas perfectly. It is made of plastic so I really hope that it keeps going as I don’t know what I would do without it. So simple but so effective.