?CORRECT TRAINING?--- Supet Dog Training Collar, Provide necessary training pressure while protecting the airway and neck sensitive area of dogs. No need to scream at a dog or punish it. You only have to pull the training collar and the dog will stop naughty immediately. Collar spreads pressure naturally to mimic mother dog carrying her pups. | ?HUMANE AND NOT HURTING?--- This Training collars for dogs are smooth and rounded to ensure that no harm comes to your pet, and provides gentle sensation to train them which is similar to how a mother dog corrects her puppies using her teeth, and at the same time, it also can ensure that your pet will pull significantly less while walking. | ?STRONG AND RELIABLE?--- Supet steady dog training collar has a quick release snap, you can quickly unravel. It's necessary to use PLIERS when you need to add some links, you can't take it apart easily, either your pet dog. Be the pack leader with this safe and effective training collar. | ?SUIT FOR ALL SIZES?--- Small Diameter 2.5 mm and length 14 inch, Medium Diameter 3.0 mm and length 16 inch, Large Diameter 3.5 mm and length 18 inch, X-Large Diameter 4.0 mm and length 20 inch. Please contact us to ask for a help if you don't know the exact size. | ?QUALITY ASSURANCE?--- Supet team foucs our mind on pet supplies, our mission is to let all pet owners enjoy every second with their pets! We offer 100% satisfaction for each product, If you have any questions about the product, please feel free to contact us so we will help you within 24 hours. Click the Orange Button to Buy Now!