Lake Charles Manufacturing 201A5 Plastic Test Tubes with Caps, Clear (Pack of 10) Go to amazon.com Related posts Check expert advices for test tubes for ants? FeatureClear Plastic6-inches Long, 5/8 Inch Wide, 3/4 oz VolumeCaps includesReusable DescriptionThese general purpose clear plastic test tubes are ideal for use in many applications from laboratory analysis to food and beverage service.