Bought this because stainless steel is supposed to be hypoallergenic and I have sensitivities to certain metals, such as nickel. After one (1) week of use, not only did the color on the inside of the band start to wear off but it caused a severe allergic reaction. I contacted customer service to see what options I had because you cannot return opened/worn items (but I obviously cannot continue to use this) and the agent twice ignored my issue, despite me sending a picture of what this band did to my wrist, and instead reminded me of the return policy before suggesting I buy a non-metal band from their store. Because StrapsCo requires that reviews be approved before being posted, my negative review *still* has not been posted a week after I submitted it. Positive reviews from other customers submitted in the meantime, however, have been approved.