Feature 1MAIN PURPOSE: Hydrogel chest sealing patch is mainly used to deal with chest penetrating wounds in emergency, convenient and practical. 2VENT DESIGN: The chest seal has 3 vents to prevent external airflow from entering when inhaling, to allow air to flow out when exhaling. 3GOOD SEALING: The hydrogel chest wound dressing has high strength sealing performance and can be used in harsh environments. 4EASY OPERATION: Remove protective liner from adhesive coated surface, and then press dressing firmly to skin to assure an occlusive seal. 5APPLICABLE SCENES: The chest adhesive dressing is widely used in emergency situations such as outdoor travel, camping, and exploration.Item Type: Chest SealMaterial: ABS, Hydrogel .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Chest Seal