Nature Zone terrarium flora feather moss is air dried, which renders it dormant with out killing it and packaged in a protective reusable plastic tray. Feather moss is harvested in sheets which when rehydrated, resumes its original shape and suppleness. Feather Moss receives its name because of the delicate feather like structure of its filaments. It may be used to decorate any moist humid environment. It assists in providing the proper substrate for sensitive amphibians and reptiles. Its weight 1/2-pounds. Measures 9-inch length by 5-inch width by 2-inch height.