Metal handrails; Metal handrail kits consisting of metal railings, metal brackets, metal endcaps, metal joint connectors, metal mounting posts, non-metal inserts for railing channels, and metal fasteners, in the nature of metal threaded fasteners, bolts, screws; Components for handrails, namely, metal railings, metal brackets, metal endcaps, metal joint connectors, metal mounting posts, and metal threaded fasteners, bolts, screws