VEVOR Post Mount Mailbox, Anti-Pry & Anti-Theft Mailboxes for Outside, Heavy Duty Lockable Mail Box with Magnetic Door, Weather-Resistant Metal Post Box for House Outside 21.06 x 10.63 x 11.22 in
Your features text says: " It can store packages up to 8.27 x 3.94 x 15.75 in, providing sufficient capacity"
What size package can it receive through the regular top opening where the mail carrier puts letters?
