Items flagged FRAGILE do not deterioriate to pristine condition when their
days are expired. Instead of going from crumbling to pristine, they go
from crumbling to non-existent. They will disappear ("poof") when they run
out of days.
Fragile items can be egged to extend their lives, unless they also carry
the "NO EGG" flag. Be sure to carefully examine each item you identify to
avoid unpleasant surprises.
See Also: EGG DETERIORATION