Name: Cup Head WashersMaterial: aluminum alloySize: M2 M2.5 M3 M4Package included: taking a purchase in step with your choiceSurface treatment: anodizingFeatures: gentle weight; no fading; antistaticUses: mainly used in aviation models, toys models and different equipment and bicycle colorful accessoriesNote:Please enable minor errors thanks to guide measurement. Thanks for your understanding.Monitors aren't calibrated same, merchandise shade displayed in images may be exhibiting barely varied from the real object. Please take the real one as standard.