A legal work contract is also referred to as an "employment contract." An employment contract is a legal agreement whereby the employer and employee agree to the terms of employment. Therefore, both the duties of the employer and the employee are contained in the contract. Also, the employment contract may contain the length of employment, or whether the employment is considered "at will," where the employee could be terminated at any time for any reason. Also, an employment contract can include provisions relating to payment, overtime, bonuses, medical benefits, vacation time, sick time, paid holidays, disability insurance, retirement, pension benefits, stock options and any other employment concerns. In addition, the contract may also contain "non-compete" provisions, where the employee may not compete with a similar employer in the future, and confidentiality provisions.