Made with shatter proof plastic. Traditionally we hang these in an east facing window, in the front of the house, at an entry door, or in a room that contains foul energies. My witch balls contain my proprietary blend of herbs and crystals passed down to me from my grandfather. They are filled with blessed herbs and charged crystals. If you would like they can also be adorned with charms and ribbon to your liking. Unlike most witches balls out there these are filled as much as possible with magical ingredients with a little bit of room to capture any energies that need to be captured.