GUARD YOUR HOUSE - Made of aluminum material, the window restrictor with keys are oxidation and corrosion resistant to prevent damage or wear and tear, which is able to withstand greater pressure and ensuring the security at home. CARE YOUR FAMILY - The limited opening of the window can prevent a child from falling through the gap. After installing the cable locks, you will not only ensure the ventilation of the house, but also protect the safety of your children. The child safety lock can be unlocked allowing for access to window in case of emergencies. SIMPLE andamp; EASY TO FIT - Supplied with fixings screws and key. These window safety restrictors are surface fixed so they are easy to install and can be done by any one. WIDE APPLICATION - This door restrictor ideal for UPVC, Timber, Composite Doors and Windows! Perfect to use in Homes, Residential Accommodation, Hospitals, Schools, Universities and Offices, providing you with a safe environment. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin