Ball

A ball for use in bat and ball games wherein the ball is struck with a bat having an untensioned, rigid ball-striking surface, the ball comprising:

• a hollow, impact body having a mass of between 10 g and 50 g, the impact body comprising a wall of a resiliently compressible material surrounding an internal space, the wall defining at least one impact zone configured for impact by the bat, the part of the wall of the impact body defining the impact zone having a mass of between 0.15 g and 0.4 g per square centimetre of the wall;
• and
• flight control means which is attached to the impact body at an attachment point on the wall of the impact body, the flight control means being operable to control the orientation of the impact body in flight,
• the configuration of the impact body being such that the impact zone of the impact body compresses to a minimum compression depth of 12 mm and the impact body bounces to a height of at least 100 cm when subjected to said drop test wherein the impact body is dropped onto a test impact surface such that the impact zone of the impact body impacts the test impact surface.