The North American Rescue Hyfin® Chest Seal is a circumferential occlusive dressing for use in the management of casualties with penetrating chest wounds. The Hyfin® uses the latest specialized adhesive technology for a superior seal in the most adverse of conditions. The Hyfin chest seal is supplied in a rugged, easy to open package that allows for quick and effective application in extreme environments.Special Features:Improved ruggedized foil packagingOversized tabs for easy openingAggressive adhesiveEasy application to open chest woundsEffective in extreme environmentsSterile and latex-freePatent(s) PendingDimensions: Packaged: H 6.25 in. x W 6 in. x D 0.1 in.Chest Seal - H 5.75 in. x W 5.75 in.Weight: 0.8 ozs.