LIVE MOSS SAMPLE LARGE CASE: Approximately 18 square feet. 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. These mosses are great for Closed Terrariums. The fresh moss will stay good for 2 to 3 weeks, if kept refrigerated. This is untreated all natural moss. This case covers approximately 17 to 20 square feet Box size 24x12x8