I am offering various size balls for use in hand exercise therapy.
Each ball is $1 each.
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First two photos:
This purple-colored ball is filled with a gel.
It is 2 1/2" in diameter.
It is easy to squeeze.
It offers a tactile sensation while testing range-of-motion, more than exercise for the finger/forearm muscles.
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The rest of the balls are sponge balls.
Photos 3 and 4:
These two blue balls are sponge.
They are 2 3/4" in diameter.
These balls offer resistance.
They are good for a healthy adult to develop finger strength.
They are large enough to challenge all five fingers.
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Photos 5 and 6:
These two balls are sponge.
They are 2 1/4" in diameter.
They offer moderate resistance.
(They are easier to squeeze than the two blue balls, above.)
Their smaller size is good for smaller hands.
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Photo 7 and 8:
This ball is sponge.
It is 2" in diameter.
It's smaller size is good for children, and it's resistance is good for a healthy child.