Prevue Porducts – Small Grass Tunel . Natural handwoven grass activity centers for small animals. Nature’s Hideaways satisfy their natural instinctrrow, explore and nest. The sweet fragrance of 100% all natural grass materials comes through in these fun accessories for small animals. All Hideaways are handwoven from a variety of natural materials, including woven black grass, couch grass,plant cane, bamboo, sisal and burlap. They are an ideal accessory for playtime adventures and instinctive play. Primarily black grass For mouse, gerbil, hamster Size: approx.7