Dry Moss Sample Large Case, 18 square Feet, Beautiful Green Moss. sheet moss, green sheet moss: This is an excellent way to get to know the different varieties of our assorted Mosses. In this case you will receive three different lush green mosses, Shag Moss, Feather Moss, & Tree Moss. The dried moss will last a long time if kept out of light. This is untreated all natural moss. Box size 24x12x8