【Martingale style collars 】 Martingale collars Recommended by vets and trainers as the best design for daily wear. To prevent escape and correct behavior, martingale is perfect for training, give you gentle control over your pet 【Durability】Soft nylon dog collar and heavy-duty hardware won't easy loose or fray; Strict pulling test conducted before production. Properly fitted, the martingale dog collar will be comfortably loose whenever the dog is not pulling against the leash 【Quick Release Buckle】Can be quickly opened in an emergency. Never leave your dog unattended with a collar on. This dog martingale collar is not recommended to use without a leash and not for indoor use 【Size】Please make sure to leave only 2 fingers between the collar and dog neck. Refer to the chart choose a size that can slip over the head, properly fitting collar won't leave any room for your dog to chew and pet won't slip out of the collar 【Reflective】This reflective dog collar ensures visibility, allowing pets to walk more safely at night. If there are any quality issues with the no pull dog collar, please contact us promptly to resolve them for you 【Martingale style collars 】 Martingale collars Recommended by vets and trainers as the best design for daily wear. To prevent escape and correct behavior, martingale is perfect for training, give you gentle control over your pet 【Durability】Soft nylon dog collar and heavy-duty hardware won't easy loose or fray; Strict pulling test conducted before production. Properly fitted, the martingale dog collar will be comfortably loose whenever the dog is not pulling against the leash 【Quick Release Buckle】Can be quickly opened in an emergency. Never leave your dog unattended with a collar on. This dog martingale collar is not recommended to use without a leash and not for indoor use 【Size】Please make sure to leave only 2 fingers between the collar and dog neck. Refer to the chart choose a size that can slip over the head, properly fitting collar won't leave any room for your dog to chew and pet won't slip out of the collar 【Reflective】This reflective dog collar ensures visibility, allowing pets to walk more safely at night. If there are any quality issues with the no pull dog collar, please contact us promptly to resolve them for you