Color: Blacktwo Durable heavy duty door stopper built from stainless steel, 3 inches tall. Designed to hold and prop heavier doors where rubber wedges are not tall or strong enough. Key benefits Strength and durability: Solid stainless steel construction and a sloped solid bottom resist cracking and deformation for frequent use. Adjustable fit: Builtin strong spring lets you set the stopper to match door clearances from 0.8 inches up to 3 inches. Secure grip: Nonslip rubber pads on both the and bottom provide reliable hold on wood, carpet, concrete and tile. Versatile application: Suitable for residential, commercial, office, school and public spaces where larger door gaps or heavy doors are present. Hands convenience: Keeps doors open so you can move furniture, carry items, or work without holding the door. How to use 1. Set the stopper to the lowest position for maximum stability. 2. Place it on the floor and push the into the bottom edge of the door. 3. Adjust the spring until the door gap is between 0.8 inches and 3 inches and the door is held firmly. Practical scenarios Moving furniture or carrying boxes through an entryway where doors need to remain open. Holding heavy metal or double doors and selfclosing hinged doors open during deliveries or cleaning. Preventing door slams and protecting walls from doorknob damage in homes, offices, classrooms, or public corridors. Specifications and compatibility Color: Blacktwo Material: Stainless steel body with nonslip rubber and bottom Adjustable clearance: 0.8 inches to 3 inches Height: Up to 3 inches Works on a variety of door types including heavy metal doors, double doors, safety doors, selfclosing hinged doors, and balcony doors with larger underdoor gaps Notes For hold, set to the lowest position and ensure the stopper is seated firmly against the bottom of the door.