Step up to designer styles and superior security with Kwikset Signature Series products. Tustins fashionable wave silhouette design is the perfect complement to homes with inspired style. This half-dummy or trim function, is surface mounted on doors. Bacteria can double every 20 minutes on an unprotected surface. Microban silver glass technology is incorporated during the manufacturing process and permanently binds the silver ions to the coating. Treated hardware continuously inhibits the growth of bacteria on the surface creating a cleaner product.