Breathing Exercise Device Abdominal Breathing Trainer Lightweight Professional Lung Exerciser for WomenFeatures: -- Sturdy and durable, strong and scratch-resistant. -- Allows you to breathe using your core muscles, which helps with fat burning and flattening your abdominals. -- Designed to boost respiratory performance, add energy to your lungs, and greatly reduce your appetite.Specification:Material: Plastic, Silicone Size: 10.8cm5.3cm3.3cm/4.13"2.09"1.3" Color: Pink Applicable Gender: Unisex Applicable Occasion: Indoors & OutdoorsPackage Included 1 x Breathing Exercise DevicePromise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.