3ball breathing trainer with 3chamber design Size and model: 5.51 x 5.31 inches (14 x 13.5 cm). A 3chamber breathing exercise device featuring three balls for adjustable inhalation speeds. Inhalation speeds and intensity: selectable resistance with speeds of 600 cc/s, 900 cc/s, and 1200 cc/s. Adjust the breathing exercise intensity to your current needs. How to use daily: 35 minutes of practice each day. For effective training, the first and second balls should be held for a few seconds, while the third ball remains on the ground during the session. Materials and safety: made from , odorless materials that are harmless to health and safe to use. The device is sturdy and durable. Design and maintenance: transparent construction allows clear observation of progress. The material is robust and shatterproof for stability. A removable bottom design makes cleaning and maintenance easy. Benefits: helps achieve lung capacity and supports the restoration of interrupted breathing patterns. Use scenarios Daily routine at home: quick 35 minute breath training to improve breath control and lung function. Pre or postexercise conditioning: use to regulate breathing pace and support recovery after physical activity. Breathing pattern rehabilitation: suitable for structured practice to reinforce consistent breathing as recommended by medical professionals. Why this stands out: clear visibility of progress through the transparent design, adjustable resistance to tailor difficulty, and easy maintenance with a removable bottom while using safe, durable materials.