1. High-grade stack material for lower temperature rise and high performance. 2. Higher-grade commutator copper with reduced bar-to-bar surge, resulting in lower spark and increased endurance. 3. Grade 2 copper wire for high-temperature endurance. 4. Epoxy resin coating protects copper wire from movement, preventing burnout 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. 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 part of this package. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.