Thank You Charm Layered Over 2018 US One Cent Penny Keychain, Employee Appreciation Gift, Lucky to Work with You! Perfect for employees 1 year anniversary gift (1 year gift, 1st year gift), or for a best friend gift The US one cent coin is called a penny and is a symbol of luck. Packaged on a card with the saying "Lucky to work with you" The copper coin is a USA one cent penny 20 mm diameter. Handmade item, hand stamped, made in USA, net weight: about 5g.