Features: Each bottle features clear graduation marks, allowing for precise measurements of liquids. Thanks ti the clear marks, enhances accuracy in experiments and makes it easy to monitor fluid levels without transferring contents to another container. Graduated glass reagent bottle is suitable for analysis, sample storage, and reagent preparation. Easy to clean, maintaining the integrity of your stored substances. Equipped with robust blue screw caps, these bottles create a tight seal that prevents leaks and protects contents from external contaminants. Specifications: Component: Glass Size: about 7.3x3.6cm/2.87x1.42'' Size: about 4.6x9cm/1.81x3.54'' Size: about 10.7x5.7cm/4.21x2.24 Color: 2 Kinds Optional Type: 6 Kinds Optional Package Includes: 1 Pc Reagent Bottle, note: Please allow 1-3cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.