? ?Easy to Use?Pinch 2 connected iron rings, pull the chain out, form a dog choker collar, wear it on the dog's neck, and then use it with the dog lead. This steel dog collar has 3 iron rings, one of which can change the extent of the collar contraction, and the other 2 iron rings cannot change the extent of the collar contraction. You can connect different rings as you like. ? ?Multiple Sizes?We offer 4 sizes of stainless steel dog chains for most dogs. Please measure the widest part of the dog's neck or head with a tape measure, and the dog collar should be 2-3 cm longer than the measured result (As pictured). ? ?Training Walking?P-type dog metal collar can easily adjust the neck length, suitable for training and other daily activities. The collar tightens when the dog is violent or excited; and it loosens when the behavior is corrected. It will control the dog smoothly, suitable for correcting bad behavior in dogs and cultivating responsive walking habits. (Note: Dogs with breathing problems cannot be used). ? ?Exquisite Craftsmanship?The training dog collar adopts mirror polishing technology, which is smooth and metallic, making your dog look cool and outstanding. There are no gaps in the collar joints to avoid harming the animal's skin. I'm sure your dog will be happy to have this collar!. ? ?High Quality Material?Made of high quality 304 stainless steel, our heavy-duty dog chain is strong and wear-resistant, chewable, not easy to rust, safe and reliable. Note: When worn, friction is easy to cause slight discoloration of dog hair, it is recommended not to use it for dogs with white hair.