Custom 1/6th Scale Little Bird 4-Blade Rotor Kit. This Kit is to replace 5-Blade Rotor on the 21st Century Toys Loach (Little Bird) Helicopter to make it more accurate. Item is 3D Printed out of an ABS like Resin. Items come in a Grey colored Primer. This features a Brass tube in the main shaft for added strength. Designed to fit original Rotor Blades that come with the 21st Century Toys Little Birds. Rotor Blades are not included.