Strong and Durable: Heavy-duty door stopper made of stainless steel with electroplating process and rubber, providing a waterproof and rust-proof design. This metal door stopper is sturdy and built to withstand heavy use, suitable for any heavy-duty door. Adhesion and Non-Slip: Door stoppers for the bottom of doors feature rubber on both the top and bottom, ensuring a secure grip on the floor and door. The non-slip design prevents sliding, keeping the door in place even in strong winds. Adjustable Design: The door wedge stopper has a spring-loaded mechanism that adjusts to fit door gaps from 1 inch to 3 inches. Unlike shorter models, this adjustable door stopper provides reliable performance for doors with larger gaps. Excellent Door Stop: Suitable for commercial swinging doors, metal doors, double doors, safety doors, self-closing hinged doors, and balcony doors with larger under-door clearance. Also works well with glass doors and various floor types including carpet, parquet, and tile. Safe and Sturdy: Automatically adjusts to the gap, ideal for use in commercial, residential, garage, corporate, public spaces, and schools. Holds heavy doors open and prevents them from closing due to wind. Color: Black + Silver Material: Stainless Steel Size: 13 cm Package Contents: 1 x Door Stopper Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.