These plastic clips are used to secure the roof lining or headlining in place on some VW models. They are used on some models of the Sharan, Transporter and the Up. The clip is quite distinctive so if possible, please check it against an existing part to ensure that they are correct for you vehicle.
Please check the details carefully before you order. Every vehicle has many different clips and fasteners. Even if the ebay compatibility check says these are used on your vehicle, that does not mean that they are the only clip and will be the ones that you need. It is important to check the photo, part number and dimensions before you order.