NOIA necklace - Letter F. An F for fierce, Femke, or forever. Gold-colored, stylish, and full of emotion. Product information Letter: F Material: Stainless steel, does not tarnish Color: gold-colored Fits through the letterbox Looking for something else? Discover all jewelry. Why Greetz: A small gesture, a big effect. With Greetz, you always give more than a card. Add a personal message to a card of your choice. We deliver seven days a week. Perfect for planning ahead or surprising someone last minute.