[COD] Cozyroom Breathing Trainer Lung Flexer Durable Fitness Exerciser Increases Lung Capacity Breath Adjustable Levels Respiratory Deep Breath

Specifications: size: 9.8x3.5x1cm. weight: 6g. packing: bagged. material: plastic. Package Includes: Breathing trainerx1. Features: 1. Powerful: This breathing trainer is specially designed to improve lung capacity and enhance lung muscle strength, which can help users improve physical fitness and cardiopulmonary function. 2. Excellent quality: Our lung flexor muscle trainer is made of high-quality materials, durable and easy to clean, and can remain novel for a long time. 3. Design science: The trainer has an adjustable level design, no matter what state your breathing ability is in, you can adjust the training intensity as needed. 4. Easy to carry: The small and lightweight design makes this breathing trainer very suitable for carrying, whether you are at home, in the gym or outdoors, you can exercise at any time. 5. Easy to use: Our products are very easy to use, just follow the steps in the manual. At the same time, the design of deep breathing can encourage you to breathe more dee