1.Precise Size for Versatile Needs: Each weighing bottle measures 70x40mm with a scientifically designed capacity, ideal for weighing reagents in laboratories and soaking / cleaning watch parts during repair This set includes 10 pieces, allowing alternating use and classified storage 3.Flat Design for Enhanced Practicality: Unique flat shape lowers the bottle height and enlarges the opening, making it easier to pick accuracy parts with tweezers or sample accurately with a spatula The compact flat body saves desktop space and enables stacking 4.Easy to Clean &: smooth glass that resists staining Simply rinse with water or a special cleaner after use to cleanliness Perfect for high-cleanliness requirements in labs and watch repair 2.Wide Application for Multiple Scenarios: Specially designed for laboratory research and watchmaking Suitable for accurately weighing and liquid samples in experiments, and also works as a professional container for cleaning watch movements.and other cleaning agents for effective degreasing and maintenance 5.Safe & User-Friendly features: The mouth is finely to be smooth, finger scratches during Thick, sturdy glass and a stable base reduce tipping on workbenches, ensuring safe