There are two boxes – one on each end of the pitch. Both boxes have the same dimensions as shown below.
There is no rule on the width of the lines as only the inside edges matter. In Test format, usually Wide markings are not drawn.
According to the ICC’s Playing Conditions for international competitions, popping crease or front line/batsman’s line should be a minimum of 27.43 meters (90 feet). For other competitions it’s drawn long enough so that umpires can judge any Run Out easily.