Usage Tips:Adjustable Length: The bell strap is easily adjustable, making it suitable for various uses and fitting comfortably around different sized door knobs. Non-Skid Rubber Base: Ensures the bell stays in place without damaging floors, providing a safe environment for your pet's training sessions. Clear Loud Ringing Sound: The metal bell delivers a bright tone, audible from afar, making it perfect for effective training cues. Safe and Non-Toxic: Made with pet safety in mind, our bells are crafted from materials that are safe for your furry family members. Portable Dog Bells: Carry your training aids wherever you go, ensuring consistency in training and reinforcing good behaviors in any setting. Upgrade your pet's training experience with our versatile Metal Dog Bell. Perfectly sized at 4x7cm, this bell is designed for convenience and functionality, offering a practical solution for pet toilet training.