SIZING YOUR DUALLY:
Green size fits small-medium ponies and weanlings of most horse breeds.
Nose – Minimum 19 in (48,3 cm) Maximum 24.5 in (62,2 cm)
Head – Minimum 25 in (63,5 cm), Maximum 34 in (86,4 cm)
Cheek – From Ring Ring 6 in (15,2 cm)
The size of the head matters more in fitting a Dually than the weight of the horse.