These are five moss covered stones about 1-2 inches in size. They have live moss partially covering them. These rocks would look excellent in any vivarium, terrarium, or even next to any koi pond or garden. They are also perfect for any art project, museum, zoo, or any other creative idea that you may have. The rocks you receive will not be the same ones shown in picture, but similar. Sharing with you from my North Central Wisconsin land.