Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper.
14k gold wire involves pressure bonding multiple layers of solid 14k gold with extreme heat over a core of high quality jewelers brass. The result is a durable, quality, real gold product. Since gold-filled has an actual layer of karat gold, not just a microscopic film, the value of gold-filled is greater then gold plated.
I highly recommend a liquid cleaner (follow directions!) made specifically for Sterling Silver only or a polishing cloth. When not wearing, store in a dark cool place preferable a box or bag. Keep out of sunlight as this will cause Silver to tarnish quicker. Any cleaning products or chlorine will cause Sterling Silver to go a dull gray or black.
Liquid cleaners or a polishing cloth .