(2 Pk) Self Standing Plastic Test Tubes Classroom Pk 12 Per Pk

Graduated plastic test tubes are secured with leak proof screw caps. Perfect for long term storage of liquids in diagnostic experiments. No need for test tube holders! (Included 12 pack / 6 - 12ml and 6 - 30 ml). Each individual set contains 12 Test Tubes, bundle of 2 sets, 24 Test Tubes total.