Descriptions:1. Made of polystyrene(PS), no bubbles, corrosion-resistant, more durable than other plastic.2. With a cork stopper, wood material, good seal, and can be used repeatedly after cleaning.3. Great for storing liquid, powder and small objects such as beads, plants, oil, etc.4. Suitable for molecular biology, chemistry, biochemistry, also can be used in scientific experiments, party decorations.Specifications:Material: Polystyrene(PS)Color: ClearType of Bottom: RoundInner Diameter: 11mm / 0.43"Tube Diameter: 13mm / 0.51"Tube Length: 78mm / 3.07"Package Content:10 x Test Tube.
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