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 pets 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.