1.Excellent radiopaque, closed-loop platinum/iridum marker band embeded for smooth transition 2.PTFE inner layer designed to provide superb pushability when supporting for device advancement 3.Higher density stainless steel braid structure throughout the catheter shaft, providing enhanced tensile strength for increased crossability 4.Hydrophilic coating and long taper design from proximal to distal: 2.8 Fr ~ 3.0 Fr for narrow lesion crossability