TN LAB Supply Mixed Glassware Laboratory Chemistry 6-Piece Set Items in the TN Lab Mixed Glassware Laboratory Chemistry 6 piece set include: Beaker Heavy Wall Borosilicate 3.3 Glass 500 ml Erlenmeyer Flask Borosilicate 3.3 Glass 250ml with Tapered Neck Flat Bottom Boiling Flask Borosilicate 3.3 Glass 250 ml Graduated Measuring Cylinder Borosilicate 3.3 Glass 25 ml Natural Rubber Stopper for Boiling Flask Glass Tapered Stopper for 250ml Erlenmeyer Flask Rated for -180 to +500 C Temperature Highly leach resistant to most chemicals Manufactured to ISO: 9001 Standards The TN Lab Mixed Glassware Laboratory Chemistry 6 piece set is also designed for elementary, middle and high schools, as well as for home school students and parents, colleges, universities and other educational organizations.