Amazon.com: Wii Fit Plus Balance Board (Board Only) : Video Games
Nintendo Wii Balance Board Cleaned Tested & Working | eBay
Nintendo Wii Fit Balance Board- Used; Clean!! No Box, No Game... Just Board | eBay
Nintendo Wii Balance Board With Wii Fit Game CLEAN Tested & Working!! | eBay
PSA: If you buy a used balance board for wii fit u, remember to wash or bleach it thoroughly before use (especially if you bought it at gamestop) : r/wiiu