Do you work as a temporary agency worker? In that case, your agency work employment contract contains information about the job, the number of hours you will be working, place of work, etc. Your employer is legally required to provide this information. Your contract also contains a reference to this website. This website provides information about the different leave options, and the rules that apply when your employment agreement (contract) ends.
The texts on the website are legal texts. If there is anything you do not understand, or you have any questions, please ask your contact person of your temporary employment agency.