Common capacities range from about 8 ounces up to 2 cups (≈16 fl oz). Many listings cluster around 10–15.5 fl oz. Example values noted include 8 oz, 10 oz, 12 fl oz, 13.7 fl oz, 14.7–15.5 fl oz, and 2 cup.
Common anti-spill features are strong suction or nonslip bases to hold bowls on smooth surfaces and quick-release tabs that let an adult remove the bowl without fighting the suction. Reviews frequently praise models with powerful suction for staying put during use.
Some product listings include suggested ages such as “6 months and up” or “3 years and up,” but several listings do not specify an age. Check each product page for the manufacturer’s recommended age where age guidance is important.
Options include solid-hue bowls, assorted or multicolored sets, clear/see-through pieces, and specific color combinations (for example, blue and green).