Photo 1 of 12PCS 4 Inch Borosilicate Glass Tubes for Blowing - Clear Small Pipe, Reusable Straw, 12 mm OD, 2mm Wall Thick Industrial Tubing for DIY Making

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Photo 1 of 12PCS 4 Inch Borosilicate Glass Tubes for Blowing - Clear Small Pipe, Reusable Straw, 12 mm OD, 2mm Wall Thick Industrial Tubing for DIY MakingPhoto 2 of 12PCS 4 Inch Borosilicate Glass Tubes for Blowing - Clear Small Pipe, Reusable Straw, 12 mm OD, 2mm Wall Thick Industrial Tubing for DIY Making