Amazon.com: Wii Fit U w/Wii Balance Board accessory and Fit Meter - Wii U : Video Games
Nintendo Support: How to Install the Foot Extensions
Amazon.com: Single Replacement Leg Foot Extension for Nintendo Wii Fit Balance Board This is for Someone who Lost one of Their Balance Board Leg Extensions : Video Games
Wii Fit Review | Trusted Reviews
Wii Fit Balance Board Replacement Foot Leg Extensions Very Good Condition | eBay