The width “shall not exceed 4.25 in/10.8 cm”. There was no mention about the depth, edges and weight. David Warner, Chris Gayle, Kieron Pollard and MS Dhoni commonly used bats with 45 mm or more edges, allowing top edges to go over the fence. MCC respondsAt the MCC World Cricket Committee meeting in Mumbai last year, the law-making body responded to growing concerns and took its first steps towards limiting bat dimensions. Then in March this year, they restricted the maximum dimensions to 108 mm in width, 67mm in depth with 40 mm edges.

Source: Indian Express August 21, 2017 21:00 UTC