This hard, crystal-clear container is perfect for undistorted viewing. Use the container for observation or display of aquatic macroinvertebrates, insects, spiders, plants, shells, rocks and minerals, or other small specimens. The lid fits snuggly over the container—to secure, simply circle the outer lid with any kind of tape. This container holds 6 fluid ounces and measures 3-5/16" in diameter x 1-5/16" tall.