Beautiful bowl with lots of life left! Not for KitchenAid tilt mixers, for professional lift mixers with a stand arm of 10 3/8” width. Color is natural copper metal. Metal is hammered and textured. Pre-owned and has marks/streaks on the copper, some are dark. Could possibly be the nature of the material. See the pictures and video in natural sunlight. Marks are on exterior and interior. Sertodo's products are created with heavy-gauge, pure copper. Hand-hammered from 100% recycled sources for a healthier environment. Apologies for reflection in pictures, this sparkles and shines beautifully!