2PCS Heat-Resistant Glass Oil Burner Tubes, 10mm, 14mm, 18mm High Borosilicate Glass Bent Tubes with 30mm Ball, Smoking Pipe and Bowl Accessories.

2PCS Heat-Resistant Glass Oil Burner Pipes, 10mm, 14mm, 18mm High Borosilicate Glass Bent Tubes with 30mm Ball, Smoking Pipes