Product Details: Features and Advantages: No special locking cap devices needed Safe sample deposit Highest impact tube strength with the smoothest interior surface Lid Closure: The flat top lid forms an extra-tight seal that will not come open during processing. Yet, Finish: The interior has the smoothest, most highly polished surface of any tube on the market The walls are non-wettable, preventing liquids from adhering to the sides Needle Access: You can easily insert a needle through the target in the exact center of the lid Our microcentrifuge tube is built for high impact usage and will withstand over 30,000 x g when spun. Thicker walls make this the tube of choice for extreme stress, high spinning speeds, autoclaving, boiling, chemical resistance and freezing. Will withstand temperature ranges of -80C (-112F) to 121 C (250F). . Material: PP Capacity:1.5ml Quantity: 50/100/200/300pcs (optional) Color:Transparent/Red/Yellow/Purple/Blue/Brown(Optional) Package list: according to your choice note: 1. Due to manual measurement, please allow an error of 0.1-0.3mm. 2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image. If you have any questions about this product, please feel free to contact us. We will reply to you as soon as possible. Thank you very much for your support. happy shopping! Satisfaction Guarantee Our first priority is to provede you with an easy,pleasant,and anxiety-free shopping experience we try our best to give a clear,candid,and complete description of our products and their conditions we are always ready to help if you have questions or encounter a problem ,but if for any reason you are not satisfied with a product or service please do not hesitate to contact us It is very impottant to us that you have a positive & 5 star transaction with us. please contact us promptly before you leave us negative feedback.we weill try our best to resolve you problem. If I am not online,please leave your message,we will reply you once we log in.we reply every message except we have not get your message. Refund we accept refund if product not as decribed If the goods are damaged.Please provide photos.We can give you a full refund.Or send you a new item If the product is lost. Or the wrong number. If we make a mistake. We accept partial refund compensation Services After receiving the payment. We will send the goods within 12 hours