INDUSTRIAL QUALITY || 500ml capacity measuring cylinder made of premium quality polypropylene plastic. Class B tolerance. The translucent, rigid polymer is resistant to fatigue for superior and dependable durability. Autoclavable for easy cleaning and sterilizationOCTAGONAL BASE || Cylinder features a octagonal base for maximum stabilityRAISED GRADUATIONS || Superior optical clarity with easy to read, raised 5ml graduation lines that are marked every 50ml. Calibrated to containGREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || High heat tolerance, and good to excellent chemical resistance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use