Rollerbahn bookmarks. I loved collecting them, but I have too many now, so I'm selling them. Each one has been used a few times. As shown in the second photo, the part that hooks onto the ring has marks on all of them. Please refrain from purchasing if you are concerned about this. This is a set sale. Although they are in good condition, they have been inspected and stored by a private individual. Only those who understand this are welcome to purchase. Instant purchase is OK!