Portable Cross-Border Breathing Trainer: Adjustable Resistance for Lung and Abdominal Exercise

Enhance your respiratory fitness with this innovative breathing trainer, designed to improve both lung capacity and abdominal strength. Crafted from durable plastic and comfortable silicone, this portable device offers adjustable resistance levels to cater to various fitness needs. Ideal for use both at home and on-the-go, it provides an effective workout for those looking to boost their breathing efficiency and overall core stability. Part Number: 02 Origin: Wenzhou Foreign trade export certification: KPL2512996896660M Manufacture country: China Instructions included: No

material: silicone