Features：
1. Made of UK medical class PVC. It’s transparent, soft and smooth, and the tube can change with temperature inside body, when the temperature is high, the tube is soft, temperature is low, so it hard.
2. The product is made by automatic production line, the products are the same, and the quality is stable.
3. With half round design, it’s easy for inserting, and can not hurt the patients.
4.This tube with springs inside, make the tube is more stronger, and it’s not easy crushing or kinking.
5. The murphy eye is smooth.
