In 2005 Kookaburra released a new type of bat that had a carbon fibre-reinforced polymer support down the spine of the bat. It was put on the bat to provide more support to the spine and blade of the bat, thus prolonging the life of the bat. The first player to use this new bat in international cricket was Australian Ricky Ponting. Kookaburra withdrew it after advice was received by the ICC from MCC that it was illegal under Law six.