GLEAVI 5pcs Chemical Experiment Equipment Single-Ball Glass Drying Tubes Glass Tube Science Tubes Lab Tubes Drying Tube Chemistry Empty Refillable Tubes Sample Tube Candy Small Test Tube


Glass tubes for drying-- multifunctional, it can be used as experimental apparatus, but also can be used as teaching tool for teachers..Single-ball glass drying tubes-- perfect and wonderful for any home, , experiment or laboratory use, simple and useful..Drying tubes-- made of high- end glass materials, smooth inner wall, useful and safe, excellent and reliable..Empty refillable tubes-- made of , useful and excellent, which is durable and in long term use..Glass chemistry tube-- the product can actively cultivate students' observation and learning ability, practical ability, imagination, etc.