Features：
1. Life size, each step of catheterization can be practiced.
2. Precise anatomical structure, convenient observation through transparent shell
3. Lifelike appearance, urethral canal length 3-5cm
4. Female catheterization
① Realistic female urethra characteristic, urethral canal length 3-5cm
② “Urine” flow out after catheter successfully enter bladder
5. Bladder irrigation
