can be used in homes, bathrooms, offices, hotel and other place to effectively secure window, balcony door, patios door. Make of Aluminum Alloy, Enduring and wear-resistant. Ergonomically and comfortably in the hand. They can be quickly installed in just a few simple step and are stable and dependable after installation. Equipped with a lock and a key. The locking of window effectively prevents theft. Parent can control the opening and closing authority of window, effectively prevents children from accidentally opening window., Manufacturer: xbiez