3 MM and 2 MM and 5 MM Door Kit Design are composed of premium STAINLESS STEEL, which guarantees that it won't rust or corrode. The ideal brass antique finish heightens the elegance of your space, your house, or any remodelling endeavour. This door kit also enhances the grandeur of your door fittings by adding elegance and a rich appearance. 3 MM and 2 MM and 5 MM Door Kit Design are perfect for both indoor and outdoor use. You may rest easy knowing your door will be safe and secure.