Które chłopak prowadzi jest idealnym ( proste prawdy nic prócz martwej control the presence of unleashed aggressive dogs. At four years of age, I still require her to wear remote collar at all times out doors when on leash or during daily focused off leash training. on I've been using the Leerburg DD Collar as a back-up for prong collars for years Started this with 100 pound Akita bitch, but she was too big, Heavy and STRONG for me to use the DD as a Dog-Aggression deterrent However now that Akita has passed away, I have tried the DD collar to DRAIN DRIVE out of new leash-reactive adopted rescue Doberman bitch, who is much smaller, more Light Weight and LESS powerful than previous dog was, and it WORKS just Exactly as advertised The first few times training Dobie to LEAVE IT while dog threatening mode I pulled straight up on the DD collar enough to raise her front paws off the ground and then after 2 sessions, all she needs now is Firm UPWARD Pressure on the DD to lose all interest menacing other dogs on I purchased this dominant dog collar through Leerburg over a year ago. I have a Herm Springer SS prong collar but big 100lb GSD still pulled more than I wanted when he saw a squirrel or another animal. By getting just the right fit and placing the cord right below his jaw he doesn't even need the prong collar. He is well behaved with just the dominant dog collar. Plus it looks better and doesn't pinch his fur. It's much easier to get off and on. I highly recommend one. on Got this collar to help deal with leash aggression 2 year old Belgian Malinois. After 4 months of positive only behavior adjustment training, she had improved some but would still bark lunge at some dogs but this collar has made a tremendous difference that behavior. Most of the time she doesn't react at all anymore, but even if she tries to act out a bit, she fights it for 10 seconds or then settles right back down. She's clearly unharmed by it but absolutely unable to bark or lunge it. Fantastic tool for dealing with this behavior issue. on What a difference this collar makes! When I first received it, I thought Now way is this going to be big enough for 10 month old Belgian Malinois. But I trusted Leerburg and tried it on her....low and behold it fit like a charm, exactly like they said it should. No more backing out of a flat collar! She responds much better with corrections and it doesn't hurt her. Thank you Leerburg for a great training tool! on I am very happy with new dd collar and I tell everyone about it. I have a 2 yr old boxer boy that was a rescue and who is stranger and dog aggressive who also likes to redirect when corrected. He has been behavior modification and obedience training for 3 months and doing well. However, this little gem coupled with Leerburg's wire basket muzzle has definitely helped get us both where we can enjoy nightly walks without incident 4 years of daily use. Can't recommend it enough. on This collar makes it simple to take the dog out for a quick potty break and works as a good backup training collar for our prong session. I've only had our prong collar fall off once, but with the DDC I 't have to worry about dog getting off leash the city. I've used this on a 'strong-willed' dog and with it on she is easily controlled with little corrections. Please READ and UNDERSTAND how this collar is to be used and worn. on I ordered this for six month old Chocolate Lab. He is going to be a big boy is already pushing 70 pounds. I tried to anticipate his size but got a little too big of collar. I should have gotten 1 smaller as this collar should not extend more than 2 after connected. This collar works great for training. It gives a quick pop release is MUCH friendlier than metal chocks. Big runs the family. I used this type of collar training now 140 pound Rottie. Very pleased would highly recommend this product. on Great back up when using any prong collar Leerburg prong leash system. Secure, easy, works like a charm. This no way hinders the ease of training, just peace of mind. on This collar definitely works as advertised. Be sure to watch the video about sizing it though. I took great care to measure dog for this collar and still wound up buying a collar that was about inch too Even I've been able to make good use of it, and curb some dominant behavior just a matter of a few corrections. on Good product, does help control aggressive dog. Mine did break, however. It is about 3 or 4 years