The centrifuge tubes are widely applied in molecular biology, clinical chemistry and bio-chemistry research, perfect for working with delicate samples, storing tiny specimens. Made of premium materials, compact size, safe and convenient to observe the inside situation, bringing you much more convenience. Features - Color: Transparent-Material:Plastic- Size: 4.00X1.00X1.00cm/1.57X0.39X0.39in -Capacity: 2ml.- The centrifuge tubes are with cap, not easy to leak and safe to use, you can use rest assured.- Suitable for office supplies, scientific experimental consumables, hospital equipment, etc, of multiple purposes.- Made of premium materials, small size, light weight, easy to be used for long time, convenient to take.- Centrifuge tubes are widely used in molecular biology, clinical chemistry and bio-chemistry research.- They are perfect for storing tiny specimens, also good for liquid storage, owning good sealing effect.Packing list: 500 x Centrifuge Tubes