This PYREX® standard wall tubing is available in 2mm to 178mm outer diameters. The 2 to 32mm O.D. tubing sizes are 1219mm long ± approximately 6mm. 2 to 4mm O.D. have ends cut, while 5 to 32mm sizes have ends fire polished. The 35 to 178mm O.D. sizes are 1226mm long ± approximately 6mm. 35mm have ends cut only. 38 to 120mm sizes have trimmed and glazed ends. The 125 to 178mm sizes have ends trimmed.