How long is the collar? I have a mastiff and a Great Dane.
162811
Carol the collar is about 24 inches of usable collar. I have 3 great danes. The collar fits 2 of them fine. My 3rd is about 220 lbs and is built more like a mastiff. I had to use an extra strap to extend his a few inches for him like I also have to do for his flea collars. Hopefully this will help you in your decision making process. I highly recommend this product. :)
722042
It will probably fit but my dogs are unaffected by this collar don't waste your money!
268215
Our dogs both measure 14" behind the ears. They are both medium about 40-50 lbs. We bought the medium which fit our dogs well (had this collar for about 5 years). Perhaps the small would be best. They are very flexible in size and easy to fit!
1429759
There is a good chance it will fit. Collar seems long enough. It works for our dogs. They still bark, just not as much.
280955
depending on the size of dog you have the collar will fit a large dog with no problems. I have no issues with my german sheperd. If you have a medium size dog like my mini aussies you will have alot of excess and it gets alittle difficult trying to place the collar correctly where it wont slide and not too loose.
785340
The collar is pretty larg. I cut mine already so I can not measure exact length. It should work for your dogs, I have a 90 lb boxer/Irish wolf hound mix and I have it on the lowest stimulation setting.
1237358
The collar is adjustable. Just buy the one appropriate for the size of the dog. It's not magic, but it does help!
376957
I just measured the medium collar and it is 24" long and just under an inch wide. If your dog is an adult and not expected to grow anymore I would say the medium will work just fine. and with that, it should put the embroidery in a visible place right on top of his collar.
2229328
I just measured the collar and it's about 23" long. I have an American Bulldog, and he's on the 6th or 7th hole in on the collar. He's about 68 pounds.
2173336
I Bought This For My 7week Old Cocker Spaniel (12in). The Collar is a Little Big But Wont Come Off! Not Sure The Type Of Dog You Have But The Medium Is Perfect For Our Puppy Because She's Growing So Quickly. Hope This Helps And It Is A Beautiful Collar By The Way.
1318468
I would go with the largest I could find. A bull mastiff is a larger breed than my chow and the collar is adjustable.
511872
I got a collar large-my dog is a service dog, so I wanted to be able to slip it off and on at my discretion, so I can't really help you with the size,except to say she is a lab, about 75lbs. I also want to say that you will not be disappointed regarding the stitching or the wear and tear; she really does a beautiful job and gets it out within a couple of days!
1266996
Can someone please post the actual measurement of this collar fully extended?
68901
The collar is 25 inches long. I have 105 lb chocolate lab and it fits him with about 6 inches to spare.
2283316
I have a 100 pound golden retriever and his neck is pretty large. I'm sure your mastiff s neck is larger. That being said, the XL is almost too large for my goldens, so I'm sure it will fit your pups... If it doesn't you may want to try a child's belt lol. And it does light up about 80% around the collar. It had an LED light "rod" insert. Very happy with the purchase.
1920637
The collars are long enough for a horse or an adolescent Godzilla. I had to trim about 8" from my collars just to get them to a reasonable length, and they're still pretty long on my 50 lb shepherd.
1894441
I wasn't able to use collar -- my dog didn't weigh enough. I would call the Dogtra people and see what they say. Good luck!