Description: -The new precision cnc tail rotor is designed to replace stock plastic tail rotor on ALIGN T-REX 250/SE helicopters. It is designed very light weight and extremely accurate to give the tail a super smooth operation. Precision miniature bearings are carefully selected to make sure the unit is at its lightest weight. As the result, the precision cnc aluminum tail rotor is even lighter than stock plastic tail rotor. -Silver anodizing version. Includes: -1 Aluminum Tail Rotor -Two (2) radial bearings -Two precision metal ball -Hardware included Requires: -Loctite all screws when assembly Weight: 1.4g Usage: -ALIGN T-REX 250/SE helicopters Instruction: -Include in the package Features: 100% Precision CNC machined Aluminum Equipped with precision miniature radial bearings Very light weight and stylish design. Very precise to reduce and eliminate all play in the tail rotor system