Sealing bottle (Glass Reagent Bottle) Purpose built for school laboratories: convenient for students during chemistry class experiments. Material: glass construction with a sealing closure to help prevent spills and contamination. Function and compatibility: designed to work with standard closures used in classroom settings. Practical advantages: secure storage of liquids, reduced mess during handling, and improved safety in student work. Sample bottle (Chemical Reagent Bottle) Purpose: ideal as a sample container for school laboratory activities and classroom experiments. Material: glass body suitable for common classroom reagents. Function: enables easy collection, transfer, and labeling of small samples in class. Compatibility: compatible with standard lab closures used in schools. Reagent bottle with scale Design: solid base for stable placement on work surfaces, reducing the chance of tipping during use. Function: builtin scale helps with accurate measurement and dispensing of liquids. Material and compatibility: glass bottle compatible with standard closures for classroom use. Performance: improves measurement precision in student experiments and demonstrations. Storage bottle Size and weight: compact and lightweight for easy storage and transport. Function: convenient for storing liquids and reagents in classroom cabinets or bags. Material: glass construction suitable for a range of classroom liquids. Practicality: portable and durable for daily school use and interlab transfers. Use scenarios Inclass chemistry experiments: store reagents securely, measure volumes with the scale, and dispense liquids accurately during lab activities. School projects and demonstrations: transport small quantities between classroom and lab, with reliable seals to prevent spills. Laboratory organization: keep samples, reagents, and consumables neatly labeled and easy to access in student workspaces.