10ml clear serum vials with caps and stoppers different color for flip off ... , green, pink, gray, blue and so on size: 10ml-20mm serum vials, 20mm rubber stopper, 20mm flip off capscolor: different color ... logo on stoppers. material: 10ml vials made by clear sterile serum vial, 20mm rubber stopper made by butyl rubber, 20mm flip ...