Create your own laboratory glassware with these clear Pyrex glass blowing tubes. With a diameter of 4 inches and a thickness of 1 mm, these tubes are perfect for a variety of applications. Made in the United States, these tubes are of the highest quality and can be relied upon for accuracy and durability. Whether you’re a professional or amateur glass blower, these tubes are sure to impress. With a brand name you can trust, Pyrex, and a model of 4 inches and 12 mm, these tubes are perfect for creating high-quality glassware. Don’t miss out on this opportunity to add to your collection of glass blowing supplies.

Create your own laboratory glassware with these clear Pyrex glass blowing tubes. With a diameter of 4 inches and a thickness of 1 mm, these tubes are perfect for a variety of applications. Made in the United States, these tubes are of the highest quality and can be relied upon for accuracy and durability. Whether you’re a professional or amateur glass blower, these tubes are sure to impress. With a brand name you can trust, Pyrex, and a model of 4 inches and 12 mm, these tubes are perfect for creating high-quality glassware. Don’t miss out on this opportunity to add to your collection of glass blowing supplies.