Encourage your students interest in nature with this sturdy Dual Magnfication Bug Viewer made of optically polished glass molded in tough ABS plastic. With it you can easily and safely study insects, leaves, flowers, coins, and other small objects and specimens. It features a double lens system at top of chamber – one integral and one hinged – for providing either 3X or 6X magnification. Holes at the top of the chamber allow air exchange for the well-being of live specimens. A grid is screen printed to the bottom to aid with counting or measure specimens. Size: 2.8″ diameter x 3.1″ tall.