A cricket bat lengths vary from size to size. I hope this answer helps you:-) A cricket bat lengths vary in size, but it has to be around waist height for a person to be comfortable. According to the rules it should not be more than 965 mm or 38 inches.
Yes, it is called seasoning. All players season their new cricket bats before they use it in a match. If you use a new bat in a match without proper seasoning, it may not perform as well as it can and most importantly it can end up broken.
The first cricket bat was roughly the same shape as hockey sticks, curving outwards at the bottom. The simple reason for this : the ball was bowled underarm along the ground and the curve of the bat gave the batsman the best chance of making contact.
The bat is traditionally made from willow wood, specifically from a variety of White Willow called Cricket Bat Willow (Sal-ix Alba var. cerulea), treated with raw (unboiled) linseed oil, which has a protective function.