This adjustable resistance trainer is absolutely your go-to fitness partner! It comes with a convenient rotary valve, allowing you to easily adjust the resistance intensity. You can customize your workouts according to your own needs and efficiently achieve your fitness goals.​

Made from high-grade silicone (the exercise trainer is crafted with ultra-flexible pure ABS silicone), it's not only durable but also ensures safety and comfort during use, providing a reliable safeguard for your workouts. What's more, it features a simple design that makes cleaning a breeze. The exercise trainer is individually packaged, and the breathing trainer boasts a sleek black appearance, striking a perfect balance between hygiene and aesthetics.​

What's even more noteworthy is its portability. The exercise trainer measures just 4 inches x 2.5 inches x 1.25 inches, and the breathing trainer is also compact and small in size. No matter if you're at home, in the office, or out and about, you can carry out your workouts anytime, anywhere, effortlessly integrating exercise into your daily life.​

The exercise trainer can precisely strengthen muscle groups, enhancing endurance and strength for various sports such as track and field, running, swimming, and more. The breathing trainer, on the other hand, focuses on lung exercises, injecting vitality into your respiratory health. Whether you're a sports enthusiast looking to break through physical bottlenecks or someone pursuing better respiratory health, these two trainers can meet your needs, making every workout of yours more valuable!