These reusable superior quality graduated cylinders are ideal for the safe and accurate measurement of all types of liquids. These Kartell cylinders feature a wide rim and a tapered pour spout for easy filling and pouring. The non-wetting interior surface eliminates concave menisci, providing more accurate measurements. The wide pentagonal shaped base provides stability and makes the cylinder roll-resistant. The heavy-duty plastic withstands repeated autoclaving. Switching from glass cylinders to these plastic equivalents will greatly reduce breakage and the potential for injury.