A punnet is a small box or square basket for the gathering,
transport and sale of fruit and vegetables, typically for small
berries susceptible to bruising, spoiling and squashing that are
therefore best kept in small rigid containers.
Punnets serve also as a rough measure for a quantity of irregular
sized fruits. Contemporary punnets are generally made in a variety
of dimensions of semi-rigid, transparent, lightweight Polyethylene
terephthalate (PET) with lockable lids, or of clamshell design, and
with vents.