Made from Solid Brass. Lever Handle for internal doors where locking is not required, If you are replacing an existing Lever Handle, this Handle will work with a Standard UK Tubular Latch. For new doors you will also need to purchase a Tubular Latch in a size to suit your door. For a 2 1/2\" Tubular Latch purchase a YKTL2-PC&PN or for a 3\" Tubular Latch a YKTL3-PC&PN. Where Privacy is required please use a separate Thumb Turn and Release (eg. reference V4043-SC) with a Bathroom Lock (Reference YKBL2-PC&PN, or YKBL3-PC&PN). 10 Year Mechanism.