Lead weights available to increase racket weight for more power, less vibrations and less injuries, usually fitted at 3 o'clock and 9 o'clock positions on the racket. The Lead weight is 1/2 an inch wide, 12.2 mm, self adhesive backed, can be cut of the reel into different sizes and weights, 6 grams, 12 grams, 24 grams, Etc. Available for DIY, 24 grams strips of 12 inches for £4.00 which is the most popular size. 12 inches Lead weight is 12 grams in weight. It is possible to increase weights of Squash or Badminton racket but not that common. Made in USA