Usage of cuttlefish bone: A valuable source of calcium to a bird, when placed in bird cages. Used for polishing silver or even, cleaning teeth. Used by craft workers for sharpening fine instruments. Used by silversmiths for making moulds for casting. Specifications: Origin: Vietnam. Moisture: 12 % max. Calcium content: 34% min. Broken: 3-5% max. Shape: trimmed or untrimmed oval. Clean, whiten, 100% Sun dried, good smell, no chemistry. Length: 1-9cm, 10-15cm, 15-20cm or superb sizes.
