【Package Contents 】you will receive 100 test tubes, 100 blank stickers, and 2 test tube rack with a capacity for 100 tubes, ensuring a comprehensive setup for your party or event needs; Use them to hold a variety of candies or liquids, or conduct multiple experiments at once【Size Details】These tubes with screw-top lids have a capacity of approximately 16x100mm(10ml). The threaded design ensures they can be securely stored in any standard tube rack for easy organization and access.【High-quality material】These plastic test tubes with caps are made of high-quality plastic and have colorful caps, making them durable and reusable.Each shelf includes three baffles and two side panels, making it easy to assemble and neatly store test tubes. When not in use, it can be easily stored away without worrying about damage or long-term wear, providing a convenient storage and space-saving solution.【Secure Seal】Designed with precision, these test tubes feature screw-on caps that form a reliable seal. This ensures your liquids, lab specimens, or small items like are safely protected from dust, moisture, and contamination. The user-friendly design also provides a comfortable grip for easy handling and secure shaking when needed.【Wide Application】Besides laboratory uses, these clear test tubes are versatile and can be used at birthday parties, wedding receptions, baby showers, or as part of holiday decorations. These capped clear test tubes are suitable for storing most small items, such as candies, seeds, spices, powders, jewelry beads, liquids, or other small items.