Philips 560-009 TightRail Sub-C Mechanical Rotating Dilator Sheath, 9 Fr X 6.1" / 15.5 cm Size, Device Inner Diameter 9.1F / 0.119" / 3.0 mm, Outer Diameter 14.4F / 0.187" / 4.8 mm, Outer Sheath Inner Diameter 18.9F / 0.245" / 6.3 mm. Box of 01