Features: brand new and high quality PREMIUM, DURABLE AND REUSABLE. These 50ml centrifuge tubes are made of high grade and eco-friendlly plastic material, roud bottom, graduated marks. Pack of 3. ACCURATE SCALES, EASY TO READ. The scale on the centrifuge tubes is very clear precise. Easy to observe and view. for Ideal for students, teahcers, school experiments, etc. EASY TO CLASSIFY. Each transparent centrifuge tubes with a writable white writing patch for easy labeling, marking and identification. Environmental friendly and non-toxic, they are also reusable after clean up. LEAK-PROOF TUBE CAP. Each tube with a sealing screw cap for preventing sample leakage. Smooth, flat inner surface, no residual solution. WIDE APPLICATIONS. Very suitable for the field of biochemistry and molecular biology, such as separation and preparation of various biological samples. Apply to loading solid, powder, seeds, pills, granular objects etc. Specifications: Material: Plastic Color: Transparent Capacity: 50ml Quantity: 3 Pieces Size: Approx. 3.3x11.5cm/1.29x4.52in Weight: Approx. 10g Note: 1. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pack 50ml Centrifuge Tubes Kit