Our rubber seals use a reinforced metal ring. When you remove the seal for bearing maintenance, sometimes it will bend slightly. You can bend it back straight most of the time but in case you can't or the seal is damaged, you can purchase new seals!
These are sold as a pair.
When installing the new seal, the black side faces out, the metal (reinforced ring) side faces in.
Please note, this is not the plastic dustcap used on many of our BBs. We also sell replacement dustcaps, search for product code: DUSTCAP