Description: _x000D_The test tube is suitable for all kinds of frozen experiment. It can stand and you can use one hand to unscrew the cap, easy and convenient operation. _x000D__x000D__x000D_Features: _x000D_Smooth wall and good transparency. _x000D_Good sealing cap, samples will not volatilize. _x000D_With 1-5ml calibration, easy reading of the liquid volume. _x000D_Resistance to low temperature, can be frozen for a long time. _x000D_Used in hospitals, epidemic prevention station, schools, scientific research laboratory, etc. _x000D__x000D__x000D_Specifications:_x000D_Height: 58mm / 2.28"_x000D_Diameter: 15mm / 0.59"_x000D_Volume: 5ml_x000D_Quantity: 10pcs per bag_x000D_Weight: 36g(approx.) _x000D__x000D__x000D_Package Includes: _x000D_1 Bag(10pcs) x Test Tubes _x000D__x000D_Note:_x000D_1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding._x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Smooth wall and good transparency 2Good sealing cap, samples will not volatilize 3With 1-5ml calibration, easy reading of the liquid volume 4Resistance to low temperature, can be frozen for a long time 5Used in hospitals, epidemic prevention station, schools, scientific research laboratory, etc