1. High-grade stack material for lower temperature rise and high performance. 2. Higher-grade commutator copper with reduced bar-to-bar surge for lower spark and increased endurance. 3. Grade 2 copper wire for high-temperature endurance. 4. Epoxy resin protects copper wire from movement, preventing damage in high-vibration applications. 5. Improved shaft material with enhanced hardness and gear durability. Note: Different batches may have slight color variations; this does not affect functionality. Blade color is randomly assigned and cannot be specified. Color: As shown in photo Material: Copper + Plastic Package Contents: 1 x Armature Rotor Anchor Replacement Only the above package content is included; other items are not. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3 cm.