Magnified Bug, Insect & Arachnid Viewing Jar - Shatter-Proof Plastic The perfect place to keep the creatures you find - Great for show and tell, science class or other school projects - features a spacious bug chamber and a magnified view when looking from above Made of shatter resistant plastic; magnified view enables you to see intricate details and differences between the hundreds of thousands of insects right outside your backdoor Jar measures 2-1/2" x 3" x 3" and has a transparent bug chamber and screw-on/twist-of lid Conforms to ASTM F963-96a standards which means that it was manufactured with children's health & safety in mind Recommended for ages 5 and up - Be sure to release your multi-legged friends back into their natural habitat after inspecting!