15ml Plastic Centrifuge Tubes, Membrane Solutions Lab Supply Sterile PP Conical Centrifuge Tubes, Non- Pyrogenic, DN/RNase free MS Centrifuge Tubes are made of high-clarity polypropylene with feature black printed graduations and a large white marking spot. Smooth, flat surface polyethylene caps for conical bottom tubes and plug seal caps for self-standing tubes are included.Polypropylene centrifuge tubes have the advantage of being transparent or translucent. They have a low hardness and can be removed by puncture. Sterile centrifuge tubes have a tube cap, which is used to prevent sample leakage, especially when used for samples with radioactivity or strong corrosivity. Specifications: Volume(ml): 15.0 Material: Polypropylene Feature: Conical, Graduated Packaging: 50pcs/pk Sterile: YesTips:1. Please check if the packaging is intact before use to ensure the sterilization environment. 2. Please check the matching degree between the cover and the pipe body, and whether the pipe body has cracks or white spots on the bottom to prevent leakage of liquid leakage caused by mismatch during use. 3. When centrifuging, the liquid sample in the centrifuge tube is usually 2/3 of the volume of the centrifuge tube and tightly closed to prevent liquid spillage.4. Centrifuge tubes must be placed in pairs and must be strictly balanced.What you get: 50 * 15ml Sterile Conical Centrifuge Tubes