Size: X-small Diameter 2.5mm and length 17.7 inch, Small Diameter 3.0 mm and length 19.7 inch, Medium Diameter 3.5 mm and length 21.7 inch, Large Diameter 4.0 mm and length 23.6 inch.
Adjustable:Prong training collar suit for all kinds of Small, Medium and Large dog, You can add or remove individual links from the collar as needed to fit your dog’s neck.
Application: Pull the training dog collar and the dog will stop immediately, The prong collar is great for training aggressive dogs, which are difficult to cope with. Additional blunt cut rubber tips on every gear can prevent harms to your dog’s neck
Safe: Dog pinch collar prongs are smooth and rounded to ensure that no harm comes to your pet while still ensuring that they will pull significantly less while walking.Designed to correct with even pressure all the way around the dog’s neck to protect the trachea and other sensitive areas.
Easy control: Gentle to firm pull allows collar to communicate to dog your desired actions; Uses prongs for gentle correction.