Badminton rules restrict the design and size of racquets and shuttlecocks. Carlton Sports, a leading producer of badminton rackets and shuttlecocks was established in 1946. It is also seen in racket sports for racket strings, eyelets, and badminton shuttlecocks. Cork is also an essential element in the production of badminton shuttlecocks. Shuttlecocks also have a high top speed compared to the balls in other racquet sports. Gosen produces two types of shuttlecocks&colon; feather and nylon. All Gosen feather shuttlecocks are Made in China. Gosen produces nylon shuttlecocks are Made in Taiwan. Players often refer to synthetic shuttlecocks as "plastics" and feathered shuttlecocks as "feathers". The shuttlecocks were coated with India rubber and, in outdoor play, sometimes weighted with lead. The Games made use of about 8,400 shuttlecocks. The goal of the game is to throw the shuttlecocks through the ring at height. At the beginning of the game's development, cherries were often used as shuttlecocks.