What is the major difference between alligator skin belt and shark skin belt?

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What is the major difference between alligator
skin belt and shark skin belt?
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Crocodiles have similar ISOs covering their
entire body whereas alligators and caimans don't.
If you look at crocodile leather, you can see a
small dimple on every scale, but not on alligator
leather.  Distinguishing crocodilian leathers
can firstly be done by looking closely at the
scales. Both crocodiles and alligators have
sensory organs called ISOs (integumentary sense
organs) covering their head and jaws. So both
alligator skin belt and shark skin belt are
good.  Sharkskin is known for being an
unbelievably tough and durable leather with
linear striations throughout. When available, it
is often our most popular leather selection
particularly among cowboys. Although sharkskin is
rugged, it can take a nice shine, making it
versatile enough for a dress boot.zallThey help
the animal to direct the head toward pressure
changes in the water (e.g. splashing water).
Crocodiles have similar ISOs covering their
entire body whereas alligators and caimans dont.
If you look at crocodile leather, you can see a
small dimple on every scale, but not on alligator
leather. 
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These shark skin  belts are made to order and
crafted with our years of leather-working
experience. This particular belt is tanned to
bring out a deep black look to the shark. These
belts are stitched and very tough. Sharkskin belt
is known for being an unbelievably tough and
durable leather with linear striations
throughout. When available, it is often our most
popular leather selection particularly among
cowboys. Although the shark skin belt is rugged,
it can take a nice shine, making it versatile
enough for a dress boot. Stingray belts are also
good to choose from as compared to alligator skin
belts they both have similar ratings and
quality. 
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The single most distinguishing feature of
alligator leather is the umbilical scar which is
an elongated star shape with a webbing pattern in
it. The alligator is the only crocodilian that
has this feature and so it is often placed
prominently on products to show the authenticity
of the leather. So alligator skin belts are
effective. This means that the patterning of the
alligator scales is not as uniform and regular as
the crocodile.
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The belly is used for manufacturing crocodile and
alligator handbags and leather goods because it
is smooth and pliable. Crocodile and alligator
are superior leathers compared to caiman which
has a tendency to form cracks between scales when
the leather surface is bent. The uniformity of
the crocodile and alligator skin belt also allows
dyes to distribute evenly in the leather whereas
the bony deposits in the caiman skin causes dyes
to be blotchy. Crocodile and alligator are
considered to be the most valuable classic exotic
leathers in the world and continue to be integral
to the world of luxury leather goods. 
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