Using your 14K gold disc initial pendant is super easy. Just fasten the lobster clasp around your neck, and you're ready to go. It's adjustable from 16' to 18', so you can find the most comfortable length for you. As for maintenance, use a soft, dry cloth to gently wipe the pendant after wearing it to keep its shine. Avoid exposing it to harsh chemicals like bleach or perfume, as these can damage the gold. Also, when not in use, store it in a jewelry box or a soft pouch to prevent scratches. Since it's custom - made, it might take up to 4 weeks for delivery, so be patient and wait for your unique piece to arrive.