The vials come with polyethylene open bottom snap-caps, Titeseal, which are packed separately. Specimen Preparation and Embedding Supplies: Vials, Racks, Holders, and Lyophilization Containers: Vials; Shell: Clear Glass, Plain Top: 1 dr. (3.7ml) Capacity, 15 OD mm, 45 Hgt mm, 144/pk Catalog No. 50-949-345 $78.18 / Pack of 144 Qty Check Availability