1. Borosilicate glass rod, glass rod, borosilicate glass solid rod, 2.shape: round, flat, triangle, hexagon, profile rod glass rod with spheremany colors: yellow, blue, green, amber, pink, lilac for choice.Many size: decided by buyersPacking: safe packing, or decided by buyers.Please contact with us for more information.Diameter: 4-42 mm Length: Below 2500mm Heat resistant Suit for super quality ...