Estate in land can also be divided into estates of inheritance and other estates that are not of inheritance. The fee simple estate and the fee tail estate are estates of inheritance; they pass to the owner's heirs by operation of law, either without restrictions (in the case of fee simple), or with restrictions (in the case of fee tail). The estate for years and the life estate are estates not of inheritance; the owner owns nothing after the term of years has passed, and cannot pass on anything to his or her heirs.