How is the 3" or 2.5" inch was measured ?
1354425
How to Measure: Measure neck circumference for size. For front depth, take a straight line measurement from sternal notch to base of mandible.
1538535
where the chin goes. . .the width changes too abruptly so that the widest part squeezes one's cheeks instead of being under the ear area.
1538536
The contoured design is about 2 1/2 " under chin and behind the neck and 3" on the sides under the ears.
1538537
The collar is three inches all the way around except where it curves down under the chin area where it measures two and a half inches.
1538538
If you want to know what to measure here is a picture (i.e. Anonagal's answer) http://www.kungfuonline.com/define.php?s=suprasternal-notch
202548
It was a gift so unfortunately i dont have it, but i can recall it was probably maybe 3/4 of an inch
1774916
They are numbered 1, 2, 3, however, I do not believe they equate to a professional measurement. My best guess would be about 1/16th of an inch, 1/8th of an inch and 1/4 of an inch.
2115065
I haven't actually taken a measuring tape to it, but it's probably about 2.5 feet. Maybe 3.
1974571
Measured from inside edge to inside edge, it's 1 3/4", from outside edge to outside edge, 2".
1685113
Using a small ruler, I measured mine. !/2x 3 1/4x 4 3/8 inches is what I measured. Really small but it works great.
1552444
I want to say about 2 inches maybe 2 and a half.. I dont own a ruler I'm using my index finger .. Its a decent size.. Not miniature
512418
Oh, I didn't realize this was a 3.5". I think I clicked on the "What do customers ultimately buy after viewing this item?". Thanks for noticing!
1482698
It's a hair shy of two inches wide and three and a half long, just measured it for you, I use it all the time.
1258278
Right about 3/4" maybe a hair smaller, I couldn't find a precise measuring tool.
1068911
It has a diameter of approx. 3.5 inches, and it is approx. 3.5 inches tall.
462970
You're wondering how big the 2" one is? Do you have a ruler that will allow you to see 2 inches?
436919
I would say it was probably 2" X 3" to 2 1/2" x 3 1/2". It is not in my possession so I am trying to remember.
565358
i'm trying to decide on 2 or 3 inch now. what did you get and would you recommend it or the other?
2075538
Looking at the answers from those who measured, I'm sure that they're correct. It must be 2 inches.
1561728
It's 2 1/4". I don't know why people just guess when they don't know the answers. I'm returning the one I purchased that was too big.
982911
My estimate is between 2.5 and 3 inches. I'm not able to measure the ones I purchased at this time, but wanted to provide some hopefully helpful information.