Color: 2pcs white, 2pcs blue, 2pcs white + blue Material: Stainless steel and ABS plastic Product size: 284 x 284 x 187 inches/72x 72x 5cm Package Includes: 2 x Pet Training Bells 1 Effective Potty Training Teach your pet to ring a bell to go outside or to relieve itself, instead of scratching on the door or barking for attention. The flat and wide button on top is easy for pets to press. This set of two bells can be placed inside or outside the door. 2 Non-skid Rubber Bottom Equipped with 3 rubber feet underneath, the bell stays in place and won��t easily slide on the floor, while also protecting it from scratches. 3 For Small Dogs and Cats This palm-sized pet training device has a diameter of 284 inches/72 cm, made from stainless steel and ABS plastic, featuring an adorable paw print design. 4 Clear Ring Since it is not hanging on the door, pets can press the bell with their paws for a louder sound, ensuring that you don��t miss their signal. 5 How to Train Your Pet STEP 1: Place the doorbells on the doorknob. STEP 2: When your pet needs to go out, guide them to the doorbells, have them ring the bells with their paw, and give a command before opening the door. STEP 3: Repeat this process when your pet needs to go out, consistently using the same command and providing praise. Within three weeks or less, your pet will learn this method.