To be effective, the Private Trainer should be 1½ - 2" smaller than the circumference of your dog's neck, right below the ears (e.g. an 18" neck would require a 16" Private Trainer). See sizing instructions tab to be ensure you are ordering the correct size!

By default, all our Private Trainers include a Duraflex quick release buckle for easy-on, easy-off use. The 10" collar is too small to accommodate a buckle. Please turn the collar inside out to slide safely over your dog's head. 

Made in the USA.