Features: Different sizes,5/10/25/50/100/250/500/1000ml optional you can choice follow your needs. the first-choice for your chemical-experiment! Premium-material,made of high-quality glass, durable, with superior-chemical durability. the translucence surfaces provides good observation during using. Cclear scale,easier to identify, standard scale line, for accurate measurement, easier to check the substance or fluid level. Wide application,-suitable for liquid,reagent and sample storage. widely used in professional laboratories, classrooms and household. Unique designs,flat bottom,ground glass stopper,it is easy to open or close. Specifications: Material:Glass Capacity:5/10/25/50/100/250/500/1000ml Color:White,Brown Note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item. Package includes: 1 Piece Volumetric Flask