If you mean 9.0 hands then your pony is 36 inches tall at the withers (located at the bottom of the mane). a hand is 4 inches
how tall pony
If you are too tall for a pony, ride a horse instead.
a pony is a horse under 14.2 hands tall.
pony
You could have a pony about 13.0 hands tall but no smaler and a horse at any size but you might want one 15.2 hands tall or shorter.
They can be up to 14.2 hands.
A pony is anything under 14.2 hands. Anything taller would be considered a horse.
up to 42 inches tall
if you are small enough yes but if you are tall then no
A large pony.
Around 16hh
A true pony is 14.2 hands and under; a horse is over 14.2 hands.