The Dreambaby® Cosmopolitan 9cm Gate extension works with the Cosmopolitan Security Gate allowing you to extend the width of the gate. The gate provides a safe environment for your child and prevents them from entering unwanted and potentially dangerous parts of the home. This easy to instal, metal construction extension will allow the Cosmopolitan Gate to extend and fill a gap of up to 93cm. The Cosmopolitan Gate will extend up to a maximum of 138cm with optional Extensions. Ensure you Measure the opening before purchasing your Dreambaby safety gate and extensions in order to determine what extensions you may need.