1 pc. North American Rescue Hyfin chest seal medical chest seal vented $24.95/ea. Free Shipping Product Description Chest Seal Features : ? Used by Military, Police, Fire, EMS and First Responders ? Large Release Tab for Easy Application and Removal ? Effective in Extreme Cold and Heat ? Transparent Backing for Easy Placement Over the Wound ? Strong Medical Grade Hydrogel Adhesive ? Conforms and Adheres Easily to All Body Surfaces · Provides total occlusion -- even with excessive blood, dirt, sand, hair, or heavy perspiration · Large pull tab for easy, quick application · Configured for ease of use in low-light environments · Latex-free; minimum incidence of allergic reactions to adhesive · Durable, puncture-resistant packaging · Integrity and function maintained when stored or carried in folded configuration 30 dys money back guarantee. Returned items must be in original condition and packaging. Buyer pays return shipping. No refunds issued unless items are returned.