Developed to safely contain suspect mail and parcels, the Mailsafe systems come in two main variants: top opening (Mailsafe 110) and front opening (Mailsafe 100). Optional features include security locking, earthing points, inner shelves, legs rather than wheels and brackets for mounting into vehicles. These additional features expand the use to include storage of explosive samples in laboratories and vehicles. The Mailsafe range has recently expanded to include the much larger Mailsafe 200 which is currently in operation at mail handling facilities.