White square on nose?

[ggdentist]

Hi I’ve been out of horses for sometime but am wondering what is the purpose of the white square below the noseband on many of the olympic eventers? Does anyone on here know?

Thanks

[Laurierace]

Flair nasal strip. Like a breathe right for horses.

[Tha_Ridge]

It’s a Flair Equine Nasal Strip… http://www.flairstrips.com/ Just like a human would wear.

[ggdentist]

Many thanks guys. They are clearly popular!