Bug Habitat Glows in the Dark and Magnifies Get youngsters outside and exploring nature. Catch fireflies, butterflies and more, then view them safely through the durable plastic jar or through the magnifying lid to get an up-close look. (Watch the lid glow when nighttime appears!) Includes a glow-in-the-dark, flip-open magnifying cap with breathe holes, and a 32-oz plastic Mason jar and a convenient carrying handle. It's great way to get kids outdoors and away from "screen time". Flip-open lid is removeable so you can replace it with a different size jar if you wish. Lid fits all regular-mouth, standard Mason jars such as Ball, Kerr, Bernardin, Kilner, Quattro Stagioni, Golden Harvest, Orchard Road, Atlas, Legacy and more. Dimensions: 4" x 7". USA made.