Strong and Durable: Heavy-duty door stopper made of stainless steel with rubber components, providing a waterproof and rust-proof design. This sturdy metal door stopper is built to withstand heavy use and is suitable for various types of doors. Adhesion and Non-Slip: Door stoppers for the bottom of the door feature rubber on both top and bottom surfaces, ensuring a secure grip on the floor and door. Prevents slipping and keeps the door in place, even in windy conditions. Adjustable Design: Spring-loaded door stopper with adjustable height fits door gaps from 1 inch to 3 inches. Solves the problem of standard doorstops being too short, offering a reliable hold for taller gaps. Excellent Door Stop: Large door stopper ideal for commercial swinging doors, metal doors, double doors, self-closing hinged doors, balcony doors with larger gaps, and doors over carpet, tile, or parquet flooring. Also compatible with glass doors. Safe and Sturdy: Automatically adjusts to the gap, holding heavy doors securely open. Suitable for use in commercial, residential, garage, corporate, public spaces, and schools. Prevents doors from swinging shut unexpectedly. 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.