12 Inch Glass Blowing Tubes 12mm OD 8mm ID 2mm Thick Wall Borosilicate Clear Glass with 4 Cleaning Brushes 20 Pieces

This product is a set of 20 borosilicate glass blowing tubes, ideal for artists, laboratory experiments, and DIY projects.

• Convenient cleaning with included 4 cleaning brushes.
• Made from high-quality borosilicate glass with excellent heat resistance.
• Each tube measures approximately 12 mm outer diameter, 8 mm inner diameter, and 2 mm thickness.
• Versatile for creating glass art, conducting experiments, and industrial projects.
• Designed for both beginners and experienced glassblowers.
• Clear design ensures excellent visibility for observation.

• Quantity: 20 pieces of glass tubes
• Cleaning brushes: 4 pieces

• Glass blowing tubes
• Cleaning brushes