Emtek handlesets are constructed of authentic materials whether that is solid brass, stainless steel etc. is determined by the particular Emtek handleset you choose. The interior components are all heavy duty as well. By constructing the latches, bolts and other interior components from solid brass and hardened steel, smooth operation as well as security is ensured for years to come. Emtek handlesets come in a variety of designs as well as 17 finishes. Emtek handlesets can be mixed and matched. This means you can have different finishes or designs on either side of the door. Total customization at your finger tips. As a result of this customization Emtek handlesets are assembled to order and typically arrive to you in 7-10 business days. If you have special requests or would like a configuration you are unable to find on our website please give us a call toll free at 866 259 8901 and we will be happy to help!