Material: latex Size: 10g Color: as shown 1. Designed for yoga deep breathing training, it helps postpartum mothers repair abdominal rectus muscle separation and reshape a flat belly. 2. Unique balloon design, scientifically exercises lung capacity, improves breathing control, suitable for people of all ages. 3. Portable and lightweight, easy to operate, abdominal breathing exercises anytime, anywhere, effectively improve the body's core strength. 4. Through professional breathing training, relieve stress, improve sleep quality, and promote the discharge of toxins in the body. 5. Made of high-quality and safe materials, one lasting and environmentally friendly, it will escort every breathing training for you. Package includes:1Set or 10pcs ballon or 5pcs valve