Prevue Pet Products Nature's Hideaway Grass Tunnel 1098 is a hand-woven grass activity center for your small animal. The sweet fragrance of 100% all natural grass materials comes through in this fun playtime accessory while satisfying your pet’s natural instinct to burrow, explore and nest. Our Grass Tunnel measures approximately 13 ½” Long with a 6” Diameter, ideal for a guinea pig, dwarf rabbit or ferret.