2021 Change in Rubber Color Requirements

As of 1 October 2021

ITTF Handbook Rule 2.4.6:

With effect 1st October 2021, the surface of the covering material on a side of the blade, or of a side of the blade if it is left uncovered, shall be matt, black on one side, and of a bright colour clearly distinguishable from black and from the colour of the ball on the other.

See also: ITTF Article