The Tudor Collection Square Bathroom Turn & Release Smooth Black Iron is designed to be used in conjunction with The Tudor Collection smooth black iron door handles on rose. This kind of bathroom lock is particularly safe, as the release can be easily opened from the outside of the door, should there be an emergency. Smooth Black Iron Turn & Release The smooth black iron finish does not have deep surface indentations like many other black finishes - this gives it a more modern feel. It is made from malleable cast iron, treated with a zinc phosphating process and then powder coated to provid...