about 144 ping pong balls are in a gross.
10 ping pong balls
about 10cm2
0 - ping pong balls are solid in color with no dots
They are made in several different countries.
Ping Pong Balls
2
25'844'746 Ping-pong balls 328'301'674 Aspirin Tablets 752'000 hockey pucks
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banana
No they do not.
On a scale of one to ten, the toxicity of Ping pong balls would be 1, because they are made of celluloid, which is not poisonous but flammable.