17.5" Pessoa Xchange saddle with the medium gullet installed. The rider can modify the width of the tree using any of our interchangeable gullet plates with only a screwdriver. This system does not change the integrity or look of the saddle. The strength is the same, the feel is the same! The tree can perfectly adapt itself to the withers and back of any horse or as your horse grows and changes. This saddle has the long forward flap, great condition.