A patented stainless steel toy hanger that can be used with virtually any toy to replace quick links that can be unscrewed by birds.  This hanger cannot be unscrewed!  Large acrylic ball is for bar spacing up to 1 1/2 inches.  Medium acrylic ball is for bar spacing up to 1 1/4 inches. Small acrylic ball is for bar spacing up to 1 inch.

Simply load hanger, put it through the cage bars and screw on the Acrylic ball until tight. By chosing the ball size that is wider than the bar spacing, it can't be pulled through the cage bars. With ball secure on the hanger, your clever friend can turn the portion inside the cage all day long and the ball just turns with it! The ball won't scratch your cage and it allows free movement adding challenge and excitement for your bird.