These 40th birthday party favors can be used for any year birthday. You can use them as 50th birthday party favors, 60th birthday party favors or any year. These candy bar wrappers fit over a standard 1.55 oz Hershey's chocolate bar. You can order them as wrappers only and purchase your own candy bars and wrap them yourself or you can order them as fully wrapped personalized candy bars. Either way they are sure to be the hit of your party.