Application: These test tubes are perfect for the storage of candy, bath salt, spices, beads, powder and liquids; They can also be used in science experiments, party decorations, wedding decorations, classroom lab supplies, and more Material: Polystyrene(PS); Color: Transparent; Total Size: 100 x 15mm / 3.94 x 0.59 inch(H*D); Capacity: 9ml; Package Contents: 50 x Plastic Test Tubes Advantage: Made of PS plastic, which is durable and not easy to break, the polished surface gives it a high degree of transparency, you can clearly see what's inside, and it can perfectly display your decorations at parties and weddings. Instruction: Our plastic test tubes serve many purposes and can be used for party decorations, candy or bead storage, bath salt containers, as well as lab use. They provide a convenient way to store and transport small items while keeping them organized and easily accessible. Notice: Please avoid exposing them to extreme temperatures or chemicals that may cause damage or deformation.