Gain Flings 16-Count Original Scent Laundry Detergent Plus Oxi Boost & Febreze Freshness. Designed to give more scent, long lasting freshness and more cleaning power. HE compatible. Easy-to-use Gain flings unit-dose laundry detergent brings 50% more Original scent to your laundry room and your clothes. Oxi boost fights stains while odors are removed with the odor-elimination technology of Febreze, so your clothes are left wonderfully clean with an amazing scent.