Refers to the terms drawn up by the parties in advance for reuse and not negotiated with each other when concluding a contract. The so-called overlord clause refers to the unequal format contracts, notices, statements, shop notices or industry practices unilaterally formulated by some operators in order to avoid legal obligations and reduce their own responsibilities. These clauses restrict consumers' rights and infringe on their interests. Therefore, the overlord clause in the contract that exempts the seller from responsibility, aggravates the buyer's responsibility and excludes the buyer's main rights is invalid.

Legal objectivity:

Article 497 of the Civil Law is invalid under any of the following circumstances: (1) It is invalid in accordance with the provisions of Section 3 of Chapter VI of Part I of this Law and Article 506; (2) The party providing the standard terms unreasonably exempts or lightens its responsibilities, aggravates the responsibilities of the other party or restricts the main rights of the other party; (3) The party providing the standard terms excludes the other party's main rights. Article 153 A civil juristic act that violates the mandatory provisions of laws and administrative regulations is invalid. However, unless mandatory provisions do not invalidate civil legal acts. A civil legal act that violates public order and good customs is invalid.