All Leather, Heavy Padded Cob / Arabian Sized Driving Harness.
Bridle Measures 44" at the largest and 32" at the smallest tip to tip over the poll. (remember your bit will add some length due to the rings) The saddle measures 80" at the largest and 70" at the smallest around the inside. Complete set everything you will need except a bit
The easiest way to know is If this will fit is using a bale string, measure corner of the mouth to other corner over the poll and then right behind the withers, remember that the bit will add approx 1.5" to the bridle due to the rings Then measure the string and compare the measurements above.