Chemical storage bottles with a closedbase design that fits into the bottle neck and seals to secure contents and help prevent spills and evaporation; ideal as liquid sample seal containers. Small weighing bottles designed for adding and removing substances to determine precise weight; suitable as laboratory reagent bottles. Reagent bottles with a cylindrical design that supports precise weight measurement in chemistry workflows; ideal for gravimetric tasks and weighing of reagents. Chemical containers for accurate weighing; small glass containers used in sample analysis and as part of standard laboratory glassware. Use scenarios Gravimetric analysis in chemistry research or quality control, where precise weighing and minimal evaporation are important for accuracy. Safe handling and storage of liquid reagents, enabling clean transfers and reducing spill risk during dispensing and mixing. Sample preparation and analysis workflows that require small glass weighing containers for accurate measurement of solids or liquids prior to testing.