Feature Highlights: 1. Clear Graduation Marks – Easy-to-read measurement lines help you get accurate readings every time. 2. Premium Lab-Grade Material – Made from high-quality polypropylene without slip agents, plasticizers, or biocides. This means no harmful substances can leak into your samples, so your test results stay reliable. 3. Secure Seal Lid – The hinged cap seals tightly to prevent leaks and minimize evaporation, even during long-term storage. 4. Durable & Chemical-Resistant – Built to handle chemicals, mechanical stress, and temperature changes without degrading. 5. Wide Compatibility – Ideal for a variety of lab uses, from sample storage to centrifugation and everyday testing. Product Details: These 50ml centrifuge tubes are designed for precision and safety in the lab. The tight-sealing hinged cap prevents accidental opening and keeps samples contamination-free. Made from sturdy, chemical-resistant polypropylene, they’re built to last through repeated use. The clear body with printed graduations makes measuring quick and accurate. Perfect for research, clinical testing, or general lab storage. Specifications: - Capacity: 50ml - Material: Polypropylene (BPA-free, no plasticizers/biocides) - Size (Diameter × Height): 116mm × 29mm - Color: Blue - Package Includes: 150 pcs centrifuge tubes (caps included) Note: Slight color variations may occur due to lighting and screen differences. Size tolerance is ±1–3cm. Only the items listed are included in the package.