ARM & HAMMER™ 4-in-1 Power Paks combine deep-cleaning detergent with ARM & HAMMER™ baking soda freshness and two powerful enzymes. Our 4-in-1 Power Paks fight stains, attack odors and protect colors to leave your clothes clean with a lasting fresh scent. The fast-dissolve microcrystals attack odors, and blast away tough dirt and set-in stains for a powerful, lasting clean.