15x SIM Card Adapters: 5 Micro Sim Card Adapters, 5 Nano Sim Card Adapters, 5 Micro to Mini Sim Card Adapters, 5 Nano to Micro Sim Card Adapters, 5 Nano to Mini Sim Card Adapters U.S. Patented, U.S. Made, Green, Recyclable, Ships from US Not Chinese Knockoffs Withstand up to 250 Degrees Fahreheit www.sharpeinnovations.com