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![5 Piece 4" Long Pyrex Glass Tubes Thick Wall Tubing Borosilicate Blowing Tubes | eBay](https://i.ebayimg.com/images/g/~78AAOSwdGZjO4Q2/s-l1600.jpg "5 Piece 4" Long Pyrex Glass Tubes Thick Wall Tubing Borosilicate Blowing Tubes | eBay")
5 Piece 4" Long Pyrex Glass Tubes Thick Wall Tubing Borosilicate Blowing Tubes | eBay
