The Mini Sphere Firefly Glow is a great toy for relieving stress and developing important learning skills in children. Designed for ages 4 years and older, this mini sphere is portable and perfect for travel, and will magically expand from 5 to 12 in. Great for creative fun, kids can roll it, throw it, bounce it, kick it, and expand it-turn the lights off and watch it glow! This toy is a wonderful early learning toy and is a good choice for developing cause and effect skills, tactile development, thinking and cognitive skills, and visual and spatial skills. Ages - 3-6.