These 250ml single-scale cylinders are made from quality borosilicate glass and have a round base permanent graduations a reinforced rolled rim and a pour spout. Class b. Come in a case of 32 cylinders. Product warnings warning: this product can expose you to chemicals including lead which are known to the state of california to cause cancer birth defects or other reproductive harm. For more information go to www.P65warnings.Ca.Gov. Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.
