Must have if you want an Oura 4
Reviewed in the United States on October 31, 2024 | Rating: 5/5 | Best Sellers in Arts, Crafts & Sewing
so glad i bought these  i had an oura 3 sizing kit however the 4 came out before i got one and im so glad i waited  i could barely fit a 13 of very 3 and now the 4 comes up to 15 found the 14 is a much better fit  bought my oura 4 right away and very happy i did