These egg shells have been cleaned and dried for safe usage. They will come broken in a 3x5 bag. You can crush them when you are ready to use them. 
 
Eggshells have been used for centuries as a very strong cleansing power for peace and protection. The most common way to use Cascarilla is to crush it and keep it in a Tarot bag to cleanse your cards in between readings. You can also repel negative energy and use it to put a protective shield around you and your space. Simply sprinkle Cascarilla around the perimeter of your house, on your windowsills, put it in floor-wash, around the bottom of your doorways or anywhere in your house that there is an opening to the outside. If you need personal protection, you can take a ritualistic bath with the powder. (It's just eggshell so unless you're allergic to eggs or eggshells, you shouldn't have any problems.) You can also add honey or salt to the bath for added magical purification, protection and sweetness of energy.