Brand new, unopened item! 【Gently Widens Nasal Passages】 The magnetic noseband is made of durable nylon and high-quality strong magnetic tabs, allowing for repeated use. Unlike traditional tapes that cover the entire nose, it directly expands the nostrils, promoting deeper and more comfortable nasal breathing. 【Skin-Friendly Magnetic Tape】 The magnetic tape is skin-friendly, using latex-free, hypoallergenic 3M material and medical-grade adhesive. It also boasts excellent breathability, adhesion, and water resistance. Please use the included applicator to apply it to your skin. 【Improves Training Quality】 When nasal breathing becomes difficult, the intake of oxygen and nitric oxide decreases, leading to reduced athletic performance and increased fatigue. The moment you put on the magnetic noseband, it increases airflow and oxygen intake, delivering more oxygen and nitric oxide to the muscles, thereby enhancing athletic performance. 【Enhances Concentration】 Mouth breathing hinders proper breathing and affects the autonomic nervous system, increasing stress. Nasal breathing regulates the autonomic nervous system, reduces stress, and enhances concentration. It activates facial muscles; mouth breathing weakens facial muscles, worsens tongue posture, and negatively impacts facial structure and symmetry. By breathing through your nose, you activate facial muscles and maintain proper tongue posture, improving facial structure and symmetry. 【Package Contents】 Magnetic nosebands × 4 sizes, Applicator × 1, Magnetic tape for 15 days! The magnetic noseband comes in 4 sizes, so you can choose the one that fits you best. Please try it out for 15 days.