About the product: This is an Amazon Basics monitor arm. It is an OEM product of the Ergotron LX. (*^^*) It's a very popular product. Immediate purchase is welcome! About the accessories: Four screws for installation are included. Everything in the photos is included. Appearance: There are no noticeable stains, damage, or scratches, and it is generally clean. Please refer to the product photos for details. Cleaning and disinfection with alcohol have been performed. Operating status: The operation has been confirmed before listing. Storage conditions: It has been carefully stored in a dark place. There are no smokers or pets in the environment. Other: The product will be carefully and securely packaged and shipped promptly. (*^^*) #ONLYNobue #Amazon #Ergotron #ergotron #MonitorArm