Material: The ball is made of plastic, non-toxic and durable, shiny magic ball, creative shape suitable for children and adults. RAINBOW DESIGN: Each ball measures approximately 12cm and unfolds to 24cm. It features a cute rainbow pattern with colorful colors to help kids identify colors. Note: Throws will get bigger and catches will join together. If the ball falls to the ground or hits an object, it will automatically decrease. APPLICATIONS: Attractive shiny iridescent balloons are a fun toy for indoor and outdoor play. PERFECT GIFT: Magic balls are great for kids, these fun bouncy balls would be a great gift for kids of all ages.