Where I come from, we'd say this bowl is "wicked big." Certainly a great size and snazzy style for fruit, serving salad or pasta, or for your cat to sleep in.
All clay and glazes are food, microwave, and dishwasher safe. That said, matte glazes are porous and will show marks from metal utensils, so we recommend wood, plastic, or silicone. And watch out for ingredients that may stain like turmeric or curry powder.
Approx. dimensions: 10.5" diam x 4" high
Minor variations in size, shape, and finish are charming indications that your pot was made by a human being and will make it worth a billion dollars someday on Antiques Roadshow.