This question is often asked is whether a heavy racket will give you more power or if an extra light racket will help with control. What some people don't know is that whether you play with a heavier or lighter racket actually depends on your age, size, and ability. Younger players may prefer to use lighter rackets while bigger players may find that heavier rackets are more comfortable. Nowadays the ITF or International Tennis Federation rules state that adult men can use adult size rackets which must not exceed 29 inches (73.7 centimeters) in length and 25 inches (63.5 centimeters) in width, though many players prefer to use their own racket which may weight from 250 to 400 grams. Women can use a 25 inch (63.5 centimeters) wide racket which must not be more than 28 inches (71.1 centimeters) in length and weigh no more than 200 grams. Kids or junior rackets are smaller and lighter, designed for younger players with shorter arms and hands in order to help strengthen their game.