About this item Quick Installation in 1 Minute: Just confirm the position of door stopper to be installed and mark it, remove base to locate included screw, fix the base to the wall with screw, align the hole on the base plate and screw the spring part inside of the base Rubber Bumper Tip: Equipped with a soft rubber tip, our spring door stop keeps the wall and door knob in a good condition and also provides you with a quiet space when in use Applicable to a variety of scenarios: White finish enhances the visual appeal and the spring door stop design allows flexibility with door. You can install it in any place such as kitchen, bathroom, living room Sturdy and Robust: Ravinte stopper is made of high-quality steel to ensure sturdy use. If you encounter any problems, please feel at ease to reach out to us Dimension - Base diameter: 0.98" (25mm), Length of black door stop: 3-2/5"(86mm), Length of screw: 0.82in(21mm) › See more product details