Please look at the follow measurements to see if it will fit your mini:
The saddle and girth strap hooked together measures approx 32" when left out to the last hole on the girth strap.
The bridle (includes blinders) measures approx 32" from bit end to bit end when adjusted all the way out.
Brand Name:workwell
Model Number:WBH75013
Type:Pleasure Harness Set Single
Leather:Buffalo Harness Leather
Fitting:Stainless Steel /Brass hardware
Color:Black, Havana, Brown & London Leather Harness
Sizes:XFull, Full, Cob, Pony & Shetland
