These bands are for sale to commemorate the new ride in Epcot at the Norway Pavilion called Frozen Ever After. They are Open Edition and sell for $22.99. You can find them in Disney World in the Norway pavilion and from the Disney Store Links here: Disney Store – Olaf – SKU: 400000330372
This band came out in MagicBand 2 form on July 3rd, 2017. The barcode SKU is unknown at this time.
