Prevue pet products natures hideaway small grass hut is a hand-woven grass activity center for your small animal. The sweet fragrance of 100-percent all natural grass materials comes through in this fun playtime accessory while satisfying your pets natural instinct to burrow, explore and nest. our small grass hut is woven of primarily sisal tassel, measuring approximately 4-inch long, 7-inch wide and 3-1/2-inch high, an ideal for a mouse, hamster or gerbil.