1. UNIQUE TRIANGULAR MOUNTING DESIGN The triangular mounting improves stability and prevents the door from swaying or tipping over. The pet door support feet are made of durable materials to provide a safe environment for your pet. 2. EASY INSTALLATION No tools are required. The pet door support feet install with simple sliding brackets for quick setup. They help protect your floors from scratches during operation. 3. UNIVERSAL FIT Each foot fits different sizes of pet doors for small and large dogs. Sized to provide additional stability and support. 4. WIDE APPLICATION Designed to be stable and effective for securing pet doors anywhere insulation is needed. Suitable for bedrooms, hallways, or interior door bars and gates. 23 practical use scenarios In a busy hallway doorway: install the triangular mounting feet to stabilize a pet door used by a medium to large dog, reducing wobble when the dog pushes through. In a bedroom doorway or shared living space: place the feet to protect floors from scratches and keep the door upright as pets move through the doorway. With interior gates or door bars: attach to gates or barriers to create a stable, insulated opening for pets without drilling or tools, ensuring secure entry and exit.