These clips fit inside the bootlid and hold the parcel shelf onto the bootlid the part is for

 an Audi A3 from 1997-2012 and also fits all models including three door and five door cars  

so when you open your boot the string stays attached. 

these are delicate clips that are broken with minimal force and these are

brand new genuine Audi parts. the part number for the clips are 8P0 862 528 any questions please ask.

the buy it now price is for both clips in the picture. 

To install the pegs this is a video tutorial that has been found off YouTube. 

https://www.youtube.com/watch?v=fSUJHAQHpTc