YeeZhi：

Traditional official hat monument, lid made of fiveBatSurroundingShouCharacter composition.Bless future generationsPlenty of fortune and longevity。

The bat's name sounds like the character for "happiness," so five bats symbolize the five blessings. Often, the five bats are surrounded by a character for longevity, as per custom."Five Blessings for Longevity"。