Overreach boots are often used when show jumping and eventing.  And to keep shoes on while the pony is turned out.
The lowest part of a pony's front leg is called the pastern. Overreach boots help to protect ponies pasterns and heels from striking by the back foot.
Crafty Ponies Overreach Boots are sold in pairs, there are two boots in this pack.
* Suitable for the pony NOT the foal