Bird Toy Beak Tweakers 4 Times Better L-Xl. This 16 Inch Hanging Beak Tweaker, Is Made Of Alternating Large, 6 Inch Long Wood Dowels, 2 Inch Diameter Wood Wheels, And 1 1/2 Inch Diameter Wood Balls Strung Together On A Cotton Rope Strand With A Metal Lock Ring For Cage Attachment. Excellent For Large To Extra Large Birds.