Caveman Closer is an automatic sliding patio screen door closer. It is designed to be installed on a new or existing 5' or 6' sliding glass screen door. You can install the closer yourself. It is a simple, durable, one of a kind design that will make your sliding patio screen door more convenient to use for your family and guests for years to come. Keep bugs out with our hands-free closer! You've got to have one! To order your own Caveman Closer, contact us Toll free #1-866-55-CVMN (1-866-552-8626) or use our online request form for more information. Still not quite sure what it is? Click on the "VIEW DEMO" link below to watch a breif video of how the product works. You can't see it...but it's really there! U.S. Patent 7025106     Caveman Closer . All Rights Reserved.