Description: MaterialDoor stopper is made from 304 stainless steel, resistant to wear and rust, designed to prevent door collisionsSpring Telescopic Door StopperThis Door Stopp features a spring telescoping design, providing durability and convenienceEasy InstallationThe door stopper is easy to install, comes with mount screws, suitable for various door typesAnti Collision 304 stainless steel door top, anti collision, noise canceling and shock absorbent, protects the door and wall from damage and scratchesWide ApplicationsAnti collision silent door suction rubber spring telescopic door stopper door holder wall protector is suitable for Rv, office, home, bedroom, living room, washroom, dining room Specification: Material:304 Stainless Steel, Rubber Size Chart: Adjustable Size: 6.9cm-11.2cm/2.72inch -4.41inchDiameter: 4.9cm/1.93inch Package Includes: 1 Piece Door Stopper1 Set Screw Accessories