Corning Pyrex 99445-10 Borosilicate Glass Round Bottom 4mL Disposable Rimless Culture Tube, 10mm OD X 75mm Height, Clear (Case Of 1000): Science Lab Culture Tubes

These single-use rimless culture tubes are packaged for convenience in easy-to-open, easy-to-use packs. The 4.0, 6.0 and 10.0 ml sizes come in a dispenser arrangement and the larger sizes are bulk packed.