Ever Ready First Aid Plastic 12" Goniometer 360 Degree ISOM

Inexpensive, reasonably sturdy, and does the job. What more could I want?

Have used for several years and it’s still going strong even with frequent use and frequent cleaning with alcohol pads and other cleaners. The numbers are still holding strong and readable.

VERY nice protractor and easy to use and easy to read. Got it to measure knee flexion after knee surgery ( a really key indicator of recovery). Well made.

Simple device but allows for a wide range of errors.

As noted. Helpful tool

Bought this to help in knee surgery recovery. Very reasonable price, works as expected. Only downside is that the "legs" are only 12" (as advertised) and the ones used by physical therapists are more like 18". The extra length would probably make this device easier to use and more accurate, but it also might be a lot more expensive. I saw one on another website for $18. This one was $7 with free shipping. Was delivered in two days as promised. The price was great and it works well enough for my purposes, so I would recommend it. If used consistently, it gives a helpful measurement of progress.

I liked that I could keep track of my range of motion at home before going to PT after my knee replacement. When I went to PT I could compare the results and the results were very accurate. The price is right and this is a good tool to use at home while doing those important exercises. Keeing track of the bend and straightness of your knee gives you the motivation to continue on your path of recovery or try a little harder between PT visits.

Looks very much like the one my physical therapist uses. It's sturdy enough for the job, easy enough to read, and once I learned to pinch the top of the rotating arm against the circle of the static arm, it's easy to hold the reading steady so that I can move the goniometer to where I can read it when I'm taking my own measurements.