By providing a standardised contract setting non-negotiable terms, accession contracts reduce the need for tailor-made contracts specific to each consumer, the resulting in efficiency and time savings for both the buyer and the seller. In a membership contract, one party has much more power than the other in establishing the contract. In order for a contract of adhesion to be concluded, the supplier must provide a customer with general conditions of sale identical to those offered to other customers. These terms and conditions are not negotiable. An example of a contract of adhesion is a standard contract form that offers consumers goods or services essentially on a “take it or leave it” basis, without giving consumers realistic ways to negotiate terms that benefit their interests.