I have a set/pair, what do I call them, of scallop shells

[donna murphy]

Thanks for your help.  This info is for the magazine "Miniature Collector" and is to describe a (I think) a Pink Pacific Scallop shell that I used to make a shower (top and bottom) for a bathroom using nautilus shells for the bathtub, toilet and bidet as well as many other shells for the lights, mirror frame, laundry hamper, etc.  I just didn't know what to call them - a pair or a set, but will just use the term - shell.  Thanks again.