●Double lumen structure
Strong propelling and torsion support, effectively preventing 'Banana shape' balloon
●Tip configuration 
Taper and round tip to reduce damage to blood vessel 
●Hydrophilic coating
Independently R&D hydrophilic coating process, smooth propelling
●Conical balloon
Pass through narrow lesion smoothly with taper balloon, 
●Tri-layer tubing 
Reducing push resistance of guidewire, providing support and pressure-bearing
●Multi-fold
Fold based on balloon diameters, lowering profile to get through