English Indoor Bowling Association Ltd



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Changes to Crystal Mark Third Edition

December 2016

Law D2
Bias side of a bowl: the side of the bowl that is the more rounded of the two sides, which is identified by the small grooved rings surrounding its centre.
Each set of bowls can carry a player’s individual emblem, logo or engraving as a distinguishing mark on both sides of every bowl.
Law 52.1.3
52.1.3.1 The distinguishing marks must be the same design and colour but can be different in size.
52.1.3.2 The distinguishing mark on the bias side of the bowl must be inside the smallest grooved ring surrounding its centre.
52.1.3.3
 
If there are grooved rings surrounding the centre of the non-bias side, the distinguishing mark must be inside the smallest ring.
52.1.3.4
 If there are no grooved rings surrounding the centre of the non-bias side, the distinguishing mark must be inside the indentations designed to help the player grip the bowl during delivery.
52.1.3.5
As well as the distinguishing marks, each set of bowls can carry a player’s name or signature. Imprints on the running surfaces of bowls must be avoided.
 
 
Law 52.1.8.4
All bowls belonging to players within a team or side must have these markings on them and the markings must all be the same design and colour. However, players may use markings which are different in size from those used by other players in their team or side where this is necessary due to differences in the sizes of either the manufacturers’ rings or distinguishing marks on the bowls.

Law 53.1
Licensed Manufacturers and Licensed Testers are entitled to imprint the registered World Bowls Stamp on the bias side of bowls. Imprints on the running surfaces of bowls must be avoided wherever possible.

April 2018

Laws 52.1.6.1 and 52.1.7.1
52.1.6 Bowls made of wood must:
52.1.6.1 measure between 112 millimetres and 134 millimetres across at their widest points; and
52.1.6.2 weigh up to 1.59 kilograms.
52.1.7 Bowls made of rubber or plastic resin must:
52.1.7.1 measure between 112 millimetres and 131 millimetres across at their widest points; and
57.1.7.2 weigh up to 1.59 kilograms


Updated 24th October 2018

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