How to train: STEP 1 Hang the potty training bells on the door and introduce your dog to them. They are loud, so make some noise so the dog isn't scared of the sound. Point to the doorbell and say \"touch\". STEP 2 When your dog touches the bell with its nose or paw, open the door, take your puppy outside, and give it a treat. The doorbell will now be associated with \"outside\". Repeat this step several times until your dog understands that it is a form of communication and not play. STEP 3 Lead your dog to the area where you want it to relieve itself, and when it's done, reward it with another treat and lots of praise. Repeat this process until your puppy knows it has to ring the bell to go potty. Specifications: Product Name: Dog Training Bell Color: Black, Beige Material: Metal + Cotton Rope Applicable objects: Universal for cats and dogs Size: Rope: Total length (including hook)*Width: 79*2cm/31*0.79inch Bell: Height*Diameter: 4*3.8cm/1.57*1.5inch Net weight: 1pc 96g Packaging: Bagged Packaging size: 12*12*3.5cm Packing list: 2 x Braided Cotton Rope Training Bell (black beige rope)