🚪 Heavy Duty Door Stop: Our large black rubber doorstop is engineered for heavy doors. One doorstop can hold doors with clearances up to 1.9 inches. For gaps over 1.9 inches, the super doorstop can be stacked, with a maximum height of 3.9 inches. 🚪 Suitable for Different Floor Surfaces: Works on all floors, including wood, tiles, carpets, cement, clay, metal, concrete, and more. Perfect for use at home, office, cabin, garage, school, and hospital (indoor and outdoor). 🚪 Safe and Reliable: The best guardian for floors, pets, and children. Larger and stronger than other rubber doorstops, made of non-toxic, environmentally friendly rubber that won’t scratch floors or doors. Keeps children, the elderly, and pets safe from door slams. 🚪 Non-slip & Durable: Strong grip with a unique hollow design. The doorstop features a special surface texture that creates strong electrostatic friction with the door to prevent movement. Its hollow bottom design prevents slipping and is long-lasting without deformation. 🚪 Large Commercial and Industrial Door Stoppers: Perfect for large doors, rubber door wedges, commercial and industrial use, office thick floor doors, school doors, and more. Also suitable for hydraulic doors and travel doors. 1.High-grade rubber Heavy Duty Door Stopper works quietly:Our door stop is made of special plastic rubber, which is flexible and durable, and gives you a safe and clean working environment 2.Tall and suitable for any surface: the door stop is higher than the ordinary door stop and more convenient to use. It can be used on the ground of various materials such as floor, ceramic tile, wood, concrete, glass, metal, etc. It is very suitable for homes, schools, offices, hospitals, commerce, industry, parks and other places3.Large plastic door stop: the single size is 6.4 inches X 2.8 inches X 2 inches, and the range of grasping the door gap is 0.12-1.9 inches