12 months & up. This is a set of 9 durable rings in three sizes measuring between 9.8" to 17.7" in diameter. Great for game play and pretend play both indoors and outdoors. Roll them, use for sorting, throw bean bags into them, or use them in imaginative play. Each ring includes braille for identifying size. Includes 9 rings in the 3 primary colors: yellow, red, blue.