Why Buy Me? If you're looking for child safety and an eco-friendly choice, the Window Safety Lock is perfect! Cannot be opened by children under 4, and the packaging is entirely environmentally friendly. Get it now to keep your home safe and green! Brand: BabyDan Product Type: Home Safety Product Sub- type: Guards & Locks Functionality: The Window Safety Lock prevents your child from falling out of the window, fits wooden windows, and is a safe and eco-friendly choice with biodegradable packaging . How To Use? You can keep your child safe around the windows with the Window Safety Lock that prevents fall injuries while allowing ventilation. The lock fits inward and outward hinged and vertical slide wooden windows. Notice that children around four years old might be able to operate the childproofing mechanism. Product Material: POM (Polyoxymethylene), PA (Polyamid), and metal screws Product Dimensions: 4 × 18,5 × 3,8 cm ( 1.57 inches x 7.28 inches x 1.50 inches ) Details: With the Window Safety Lock, you’re not only protecting your little one from fall injuries in the home – you’re taking responsibility for the environment that your child grows up in, too, as the packaging is 100% biodegradable and Cradle to Cradle certified. This means that it will naturally decompose and leaves nothing behind that damages our planet. Prevents fall injuries while allowing ventilation. Easy for adults to mount and operate. Free from phthalates, BPA, and PVC. Complies EN16281. Packaging is 100% biodegradable and Cradle to Cradle certified.