❀Premium Material❀ Borosilicate Glass 3.3 has very low coefficients of thermal expansion, making it resistant to thermal shock. It also has a high chemical resistance in corrosive environments. ❀High Temperate Resistance: Maximum temperature 121°C/249.8°F. ❀Note: The cap cannot be sealed during the high pressure treatment the resulting cooling vacuum could break the glass. ❀GL45Screw cap❀Made of polypropylene material, which is resistant to corrosion and high temperature and the lid can be by high-pressure steam treatment at 140℃/284°F ❀USE❀Glass bottles fit for storing chemicals, great for making agar and other liquid solutions for lab, scientific studies and home uses ❀Package includes❀ You will receive 3 orange GL45 screw cap storage glass bottles, tightly sealed, drip-free, reduce the risk of liquid evaporation and exposure，enough for your daily use and replacement. ❀Size❀230mm x 10mm / 9in x 3.9in