Characteristics:

1. Sign of visualization guarantees precise orientation.
2. With signs of calibration on catheter, it is easy for orientation
3. Triplicate-wing folding craftwork makes diameter very small before dilation, and makes it easy to pass through the narrow part.
4. Guide wire with diameter 0.035" can pass through this dilation balloon.
5. With full specifications, maximum diameter can reach 40mm, be used for cardia dilation.