FOREYY Set of 2 Dog Doorbell for Potty Training Puppy from Doggie Doorbell with Extra Loud Bells for Housetraining, Housebreaking Train - Included Potty Training Guide Training Clicker INSTEAD OF HEARING BARKING & SCRATCHING. All dogs have to go potty, ForeYY doggie doorbell proven as an effective method for housebreaking, housetraining, potty training for your puppies, you can teach them how to signal you when they have to go. CHOOSE THE MOST SUITABLE LOUD BELLS AT YOUR PREFERENCE. ForeYY dog barking doorbell include 1PC 1" wide ribbon with 1.4" loud bells in Black color and 1PC 0.8" wide ribbon with 1.1" loud bells in Red color. You can choose the most suitable loud bells and they can be used in different doors at your preference. If both are not loud enough, our design can lock 2 doorbell together to make it louder. DURABLE NYLON MATERIAL & EXTRA LOUD BELLS. Made from super strong thicker nylon ribbon to withstand the toughest tugs, scratches, and bites. The sleek silver coating jingle bells are sound great and durable to resist stress from the playful dogs. Both potty training bells have two snap points make it adjustable and easy to hang on any door at the height you choose. BONUS TRAINING INSTRUCTION & FREE GIFT TRAINING CLICKERS & DOG WASTE BAG . Simple Steps Training Insert that makes training easy and makes you feel like the dog whisperer. Also free gift training clicker can train the dog house-trained, basic obedience, small trick, and correct the bad behavior. Instruction of How to Clicker Train Your Dog also included. 100% MONEY BACK GUARANTEE. No questions asked. No matter what, you're covered! Great gift idea for your love pets.