Package deal 1000 SHINY Flip off caps + 1000 Gray Bromo butyl rubber plugs. you get the complete set caps and plugs for $67.99. your choice of color. 

These are brand new Flip Off seals that fit 20mm serum vials. These come in a plastic bag as shown in the picture.    Buy with confidence, check our feedback. We ship Priority US Mail with tracking.

20mm Gray Bromo Butyl rubber stoppers for Tubular Vials*** These are the most common ones used on Vials. They are not sterilized but can be by the customer before use.