Material: Made with a high-strength aluminum alloy system, it wont rust even if it gets wet with water, so you can use it with confidence for a long time. 【With Key】3 matching keys. Lever handle lock is suitable for indoor use, outdoor living room and kitchen. Opens with matching key Door Thickness: Door lever handle lock aluminum alloy body. Applicable door thickness: 1.0 - 1.8 inches (25 - 45 mm). [Features] Lever handle lock is suitable for indoor and outdoor living rooms and kitchens. Opens with a corresponding key when locked from the inside (Privacy Security): The door lock is a great way to protect your home (and yours). The high-quality latch provides added security for the door entry so you can rest assured knowing that you are getting a good rest. Safe and easy to use, 45 degree twist lock prevents the handle from opening from the outside. "