Firm, kink-resistant material Gradual taper designed for atraumatic placement and manuverability Available in 8F to 30F OD even sizes Graduated dilator set includes 12 dilators (8F to 30F OD even sizes) and 8/10 Dilator/Sheath Set Dilator/sheath set includes 12 dilators (8F to 30F OD even sizes), 8F stylet and four Amplatz Sheaths (24F to 30F even sizes)