@evelynnroshia82819: The majority of metal caskets are known as "protective" caskets. This terminology reflects that they are manufactured with a one-piece rubber gasket that runs around the inner lid of the casket. Oncr closed, a locking mechanism draws the lids onto the base and the gasket forms a seal. This protective seal protects the deceased from the air and other outside elements. #education #casket #disinterment #airtight #greenscreen