At heart the mastercase 5 advocates a new relationship that binds component makers and users closer together its elegantly smooth flexible freeform modular system supports multiple outlooks allowing you to upgrade rather than entirely replace your case as your needs change over time go with either basic dual top handles and standard door of the mastercase 5 or an elevated mesh top cover of the mastercase pro 5 we want you to have absolute control over how your case looks and functions the freefo