3. THE BALL
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3.1 The ball shall be spherical, with a diameter of 38 mm.
3.2 The ball shall weigh 2.5 gm.
3.3 The ball shall be made of celluloid or similar plastic material and
shall be white or orange and matt.
3.4 The standard bounce required shall be not less than 23.5 cm. (9 7/32
in.) nor more than 25.5 cm. (10 3/8 in.) when dropped from a height of 30.5
cm. (12 in.) on a specially designed steel block. These heights are measured
from the bottom of the ball.
3.4.1 The standard bounce required shall not be less than 22 cm. (8 3/4
in.) nor more than 25 cm. (9 3/4 in.) when dropped from a height of 30.5
cm. (12 in.) on an approved table.