size: As shown in the image
Product Description: Breathing trainer, adjustable resistance, targets rectus abdominis muscles
Product Features: Easy to clean and portable, increases lung capacity, enhances exercise endurance, alleviates breathing difficulties, reduces stress, improves cardiopulmonary function, enhances sleep quality
Usage Scenario: Outdoor
Important Notes:
1. Actual product colors may vary slightly from images due to screen display differences and lighting conditions
2. Manual measurements may have a tolerance of approximately 1-2 cm. We appreciate your understanding.