■ Material Used: Igusa (grown without pesticides, produced in Kumamoto ); Size: Igusa Rope, Diameter 0.4 inches (9 mm) (2 m) ; Rope is recommended for making birds toys. Also, wrap it around the cage to help prevent and relieve "biting cages". Dried powdery clay is adhered to the Igusa. When working, this powdery clay may be held in your hand or in the air. If possible, work is outdoors or laying old newspaper on the floor. It is surprisingly stiff, so we recommend wearing gloves or rubber gloves when working. Dried powdery clay is adhered to the Igusa. When working, this powdery clay may be held in your hand or in the air. If possible, work is outdoors or laying old newspaper on the floor. It is surprisingly stiff, so we recommend wearing gloves or rubber gloves when working. Depending on the manufacturer, the color and condition of the rabbit rope may vary depending on the manufacturing company. Therefore, there may be differences in the workmanship, but this is not a quality problem. Thank you for your understanding.