These Aluminum Jars Have See-through Tops That Fit Snugly For Secure Transport Of Your Collectibles, Electronic Parts, Beads, Jewelry Components, And More. Each Box Measures 2 1/2" Diameter By 1" In Height. Comes In Cardboard Box That Holds All 12.Great for sorting small items such as Beads, Gems, Precious Stones* 2.5" X 1" Small Jars * Perfect For Sorting And Even For Displays * Professional Quality * Comes In Cardboard Box With Lid