The Door Stop is suitable for all kind gaps of door. Rubber foot can protect your valuable carpet, floor and tile. Solid build, comes with mounting screws for easy installation. Strong and holds very well, it is easy to push down and release, even with bare feet. Step on the piston to set it in place, step again on the lever to release and it pops up. You just have to be careful to place it correctly on the door, making sure it doesn"t hit the jamb when closing the door and placing it at the correct height for the rubber tip to hit the floor with enough pressure. DIMENSIONS - Mounting Base Size: 6.8x1.2inch (L*W); Stopping Rod Length: 6.5 inches. MATERIAL - Made from zinc alloy material, features a spring loaded plunger throw and a large soft rubber foot for good holding power. APPLICATION - Built-in telescopic spring makes it available for you to open/close door to save you from the disturbance of door squeak. Specifications: Material: Zinc Alloy Mounting Base Size: 6.8x1.2inch (L*W) Supporting Rod Length: 6.5 inches Foot Diameter: 0.8 inch Mounting Hole Dia.: 5mm Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it