... . Description of ProductBorosilicate Clear and Colored Glass TubeColor:Clear, dark blue, light blue, amber, light yellow, green, pink, purple, red, black , ... ,12x2mm,12x2.2mm,13x1.8mm,16x1.8mm,16 x2.4mm,19 x3mm,50 x5mm,50 x7mm,50 x9mm,60 ... x 3.2mm, 32 x 4mm, 38 x 3.2mm, 38 x 4mm, 44 x 4mm, 51 x 4mm, 51 x 4.8mmChemical ... RegardsJessica John (Sales Manager) borosilicate clear and colored red glass tube