Key benefits - Adjustable sizing for a comfortable, secure fit and added control - Martingale action tightens as pressure is applied to the leash, aiding training while preventing abrupt closures - Safe limited-closure design ensures the collar will not fully close or injure pets - Available in three sizes, from 13 inches to 34 inches, to fit a wide range of breeds How it works - The collar provides controlled tightening rather than a full choke, helping guide your dog without compromising safety - When the leash is pulled, the size adjusts to offer gentle, predictable tension during everyday walking and training Who this is for - Ideal for puppies and dogs learning to walk on a leash - Suitable for dogs that tend to back out of traditional collars or pull during walks - Works for a variety of breeds due to its adjustable sizing Use scenarios - Puppy leash training: use during short, focused sessions to establish walking manners with gradual adjustments to fit - Training for dogs that slip out of flat collars: the martingale design provides a secure fit without risking a full closure - Mixed-breed households or growing dogs: easy to resize from 13 to 34 inches to accommodate different neck sizes and training needs Sizes and fit - Three size options covering 13 to 34 inches in circumference, designed to fit a wide variety of breeds - Compatible with standard leashes and everyday walking routines - Built to deliver steady control and reliable performance during training and regular walks