Fill your Laboratory with colorful sand, shiny glitter, or any other small objects worth preserving and then enclose your treasures with a cork top. You can display these in your themed shadow or vignette boxes or make your own display.Small, glass laboratory flasks used to hold small objects or elements. Add glass glitter, a secret potion, or elixir, then add to your next project or jewelry project. Constructed of glass and include measurement markings and corks. Includes 2 flasks, approximately 2 and 2.375 inches in height.