The Mini Knot Block Preening Bird Toy is the perfect toy for your bird to chew and preen! The combination of natural wood and dyed sisal rope provides a multitude of colors and textures that will engage your bird for hours. The sisal rope is dyed with natural food dye, so birds can have a safe and fun playtime and he will enjoy the challenge of untying the sisal rope knots. Recommended for small birds and measures 5" x 2".