features:Made of effective stainless steel, it is not clean to rust or corrode.Simply screw in, easy to put in and maintain. Very suitable for bathrooms, bedrooms, cabinets, wooden doorways in sheds, etc.The sliding bolt motion gives a strong ultimate mechanism that can be inserted to safe the door, providing enough strength and steadiness for any door.SpecificationsColor: Silver/BlackMaterial: Stainless steel+zinc alloySize:42*21mm(1.65*0.83in)Installation method: screw in The packaging includes:1 x door bolt (including screws)noteDue to guide measurement, the size error is ready 1-2mm(0.04-0.08in).Due to variations between diversified monitors, pictures won't replicate the actual item. Please evaluate this earlier than purchasing.