3 years & up. Take your observations outside with these durable Discovery and Exploration Convenient Folding Binoculars for Outdoor Learning. These portable 3X binoculars fold for easy storage. Children will love bird watching and discovering cool little critters outside. These binoculars encourage exploration, imagination, and outdoor activity. Color may vary. Measures 1.5" W x 3" H x 2.6" L.