High-quality graduated cylinders with double scales.

• Made from heavy-duty borosilicate 3.3 glass
• Meets ASTM Class B tolerances for precision; individually calibrated to contain
• One-piece molded glass construction with hexagonal base and adjustable plastic bumper guard
• Low temperature gradient; can withstand high temperatures and thermal shocks
• Strain point: 515 °C
• Annealing point: 565 °C
• Softening point: 820 °C

Each cylinder features a double metric scale, calibrated to contain. Borosilicate glass cylinders with pour spouts feature heavy uniform wall tubing and attached glass hexagonal bases. All cylinders include bumper guards.