Da Bird: A toy every cat should own! Indoor and outdoor kitties alike will go crazy for the real bird noises the Da Bird can achieve when it is swiveled through the air. The 36 inch rod has 50 lb. test braided nylon string and aerodynamically configured feathers that mimic the action of a real bird! The feather attachment is connected with a swivel so the line will not get twisted around the rod. This easy open connection will also allow you to change attachments. Also available in a pull apart rod!