The Outdoor Discovery Magnifying Bug Viewer is made with high-quality, nontoxic plastic and features a 3.5-inch magnifying lid with air holes to keep insects alive. This bug-viewing jar is designed to help kids safely and gently capture small critters, observe them, then return them to nature. Fits easily in small hands, jacket pockets, and backpacks. Great early STEM introductory toy for developing early science skills.  For ages 5 . Dimensions: 2.8" x 2.8" x 2.3"