Anti-theft devices are items used to protect valuable possessions from being stolen. SAFES and locks are two of the most common anti-theft devices. SAFES are secure containers that can be used to store items such as money, jewelry, and important documents. Locks are devices that are attached to doors, windows, or other items to prevent them from being opened without a key. Both SAFES and locks provide an effective way to deter theft and protect valuable items.