Nalgene™ translucent graduated cylinders are an outstanding value. Constructed of polypropylene with molded-in graduations that are large and easy to read. Large rounded bases are ribbed for reinforcement and stability. Generous pour spout; size -0010 has a conical top for easier filling and pouring. Non-wetting; calibrated TC/TD at 20 °C. Contact-clear. Very good chemical resistance.