The SE GB5-12 2-1/3" x 9/16" Leak-Proof Glass Vial Set (12 PC.) includes screw-on vials made with clear transparent glass for clean visibility while classifying and organizing. They are designed to contain small items and valuables for safekeeping. Secure findings from gold panning, samples for scientific research, objects for display, party favors, and so much more with our leak-resistant glass vials. They feature black plastic leak-resistant screw-on caps and a transparent glass to view or display your contained items multiple uses for vials keeps your small items safe.