Back by popular demand, colonized agar tubes! These tubes are of the highest quality with a rubber gasket in the lid for long term storage. Each tube has 4 agar pucks in them that can be used on 4 plates. In addition to that, each tubes sample comes suspended in water. This is to guarantee a free non dried out sample and the water can be used as liquid inoculated (LI). Give the tubes a rigorous shake before removing the sample. Draw the remaining water into a syringe and you can use that to inoculate plate too! Win, win!