Brrnoo Manual Spine Chiropractic Adjustment Correction Tool, 6 Levels Force Massager with 4 Repaceable Massage Heads for Back Pain Relief

Perfect for the wife. Does not hurt her at all and it's easy to use.

Works really well, good quality product

Chiropractor. It was awesome and super strong for all of one month then broke. Granted it was used quite a lot by one of the other doctors in my practice, but you get what you pay for with an activator 4. Have only had to repair it once in 10 years. This thing was not repairable. Unfortunate bc it worked quite well and had multiple heads.

Looks great in the pictures. What they don't tell you is that the blue is more green-blue. And, the tension spring is VERY stiff, making it unusable. And, while there is "6 levels" of tension, in reality, the thrust is the same on each level, meaning there is no difference in depth. Prongs are cheap plastic. Definitely look somewhere else.

They are not a good purchase.