The screw cap design of these urine sedimentation tubes makes them incredibly convenient for urine analysis. The caps ensure that the samples are securely sealed during centrifugation, preventing any leakage. The pointed bottom design allows for easy sedimentation of urine particles, making it easier to analyze the sample. The tubes are also made of plastic, ensuring that they are durable and . Features -Color:Transparent -Material:Plastic -Size:10.50X2.00X2.00cm/4.13X0.79X0.79in -Capacity:12ml -Safe Handling: The screw cap design safe and secure handling of samples -Efficient Sedimentation: The pointed bottom design facilitates easy sedimentation of urine particles -Precise Measurement: Clear markings on the tube allow for precise volume measurement -Transparent Design: The transparent plastic design allows for easy observation of the sample -Durable Construction: The durable and construction of the tube allows for repeated use Package list: test tubes