The bar is great quality. The color of the bar does not change after you wear it. You can choose both keychains, both necklaces or necklace-keychains. Also color bar set gold, silver, black. It can be personalized with a name, initials, monogram, date, location coordinates, etc. Please add this information to personalization at the time of purchase. Describe everything in detail. Great gifts for women, best friend, bride, graduation, birthday, Moher’s Day, anniversary, etc. Material: stainless steel Size: 2.95cmx0.5cmx0.5cm Couple Bar Necklace Date Personalized Anniversary Gifts For A Boyfriend Girlfriend Matching Necklaces Him Set 2