I’ve been using products from Pressure Positive for about 20 years. They are great for self massage. I especially enjoy the Index Knobber, the Backnobber, and Jacknobber.
The Original Index Knobber lets you apply deep pressure to muscles, and tendons, without stress to the fingers or hands.
The Orignal Backnobber (photo above) is solid chrome molly steel rod with wooden balls on each end, and can be used to apply deep pressure to the back muscles, using your arms (or even the knees, if you’re limber enough).
The Original Jacknobber, along with a hard solid rubber ball (lacrosse), can be used to get deep tissue in the pelvis / hip, by resting it on while laying on the floor. Lacrosse balls can also be used for the back, by rolling around on it, very slowly. Cheap and effective.
It can really hurt to do this, if you’ve got trigger points, but over a month or two, the pain diminishes during the massage, and between massages, so it’s well worth it for chronic muscle / tendon pain.
I’ve been doing self-massage most of my life, and these 3 tools are “best in class,” IMHO.
None of these has ever broken, and 15 years after I purchased it, I asked the owner if I could buy the small wooden balls to replace the larger one on my Backknobber, and he sent them for no charge. Nice people to do business with. I have no business relationship with them, other than as a long term very happy customer.