Useful for setting up new labs and restocking existing ones. 32 Pieces Glassware is high quality borosilicate glass Perfect for Students Pieces in this set are useful for basic lessons in measurement Eisco Labs Starter Lab Supply Pack- 32 Pieces - Useful for setting up new labs and restocking existing ones. Pieces in this set are useful for basic lessons in measurement. This pack consists of the following items: 3 Tall form Beakers - 50 ml, 250 ml, 400 ml 2 Erlenmeyer Flasks - 50 ml, 250 ml 2 Graduated Cylinders - 10 ml, 100 ml Plastic Funnel 6 Test Tubes - 15 x 125mm Test Tube Brush Test Tube Holder Test Tube Rack Watch Glass - 100 mm Safety Goggles Spatula ? Micro Thermometer -10 to 110°C Wash Bottle ? Plastic Ruler 6 Dropper Pipettes - 3 ml 2 Glass Stir rod 8" Hand Magnifier - 3x / 6x " Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.