From the instructions...

Congratulations! You are now the proud owner of Doc Eason's "Out to Dinner Clip." This elegant accessory allows you to perform effects based on the "Out to Lunch" principle while maintaining your image as a classy performer. Just follow the simple directions, and soon you too will be wowing them with style.
 
History: The "Out to Lunch" principle comes from the 1800s, and was originally applied to slates by spirit mediums. Often attributed to Bagshawe, it was actually William Larsen Sr. who first published a magic version with paper cards. His effect, "Finger Prints" can be found in the July 1923 issue of "The Jinx." Our literature is now littered with effects based on the simple principle of a half card covering a whole card in a stack.
 
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It is a question of style.
 
"Out to Dinner" is a specially designed clip for your business cards that is functional as well as fashionable. It is an elegant accessory that makes the "Out to Lunch" principle work like a charm and won't diminish your image as a class performer.
 
Along with his custom made "Out to Dinner" clip, Doc Eason is releasing one of his favorite routines, and several other cutting edge ideas for its use.

Clip Length Approximately 2" (7cm)