Instead of having an O shape it now has an X shape. This means that when pressed between the chain plates, it no longer has a flattened O ring shape but instead has two smaller faces touching either plate in an X shape. This gives you the same great sealing and durability but now with very low friction.
Graduation Announcement Etiquette: How to Address Graduation Announcements. College Graduation Announcement Etiquette: How To Address Graduation Announcements With Inner Envelopes. You can either address your envelopes by hand or order printed envelopes while purchasing your college graduation announcements. The later will save you time and effort.
Reasons to Send Graduation Announcements. Your family and friends want to know. Sure, some may know that you are graduating ... sometime this year. An announcement is a great way to keep them informed and to let them know what your degree is and when, officially, you'll be receiving it. Your parents and other family members want to brag about you.