“The Army’s Greatest Invention”The P-38 Can Opener The Environmentally Friendly Can Opener. A P-38 Will Work on Any Size Can with a Rim. When the Power Is Out or Your Electric Can Opener Bites the Dust, a P-38 Can Save the Day. Don’t Get Caught in a Thunderstorm, Hurricane, Ice Storm, or Any Natural Disaster Without a Working Can Opener. Perfect for Camping, Hiking, Fishing, or Even for the Survivalist in Your Family. Be Sure to Carry a P-38 on Your Key Ring, Dog Tag Chain, Tackle Box, or in Your 72-Hour Emergency Survival Kit. A P-38 Is Cheap Enough to Tape One to Each Can in Your Emergency Stockpile—Especially Do That for Your Grab & Go Bag. Hand a P-38 to a Stranger and They Will Either Have a Look of Bewilderment on Their Face or Look Up at You with a Big Smile and Tell You Their P-38 Story. Remember the GI’s Golden Rule: “Always Make Sure Someone Has a P-38.” Give a P-38 to All Your Friends and Loved Ones.