✅Versatile Usage: These conical flasks with screw caps are perfect for making solutions, holding, containing, collecting, or measuring chemicals for various processes like mixing, cooling, dissolving, or analysis in chemistry lab experiments. ✅Multi-purpose: Suitable for use in laboratories, schools, offices, homes, and kitchens, these reusable flasks are ideal for storing chemicals, mixtures, kitchen seasonings, or oil, providing convenience and practicality. ✅Durable Construction: Made of thickened plastic, these flasks are suitable for both beginners and professionals, including students, ensuring reliability and longevity in diverse experimental settings. ✅Leakproof Design: The screw cap securely seals the contents of the flask, preventing contamination and ensuring leakproof storage, enhancing safety and efficiency in experimental procedures. ✅Pack of 1 / 2: This 250ml capacity plastic conical flasks with screw caps, offering ample capacity for various laboratory tasks and experiments. ✅If you need custom order with different sizes/design please contact KingMariot Storefront on Amazon. ✅Safely Packaged to avoid being damaged during transportation.