<Ul> <Li> Recipients: The top three competitors receive medals </Li> <Li> Shape: Usually circular, featuring an attachment for a chain or ribbon </Li> <Li> Diameter: A minimum of 60 mm </Li> <Li> Thickness: A minimum of 3 mm </Li> <Li> Material: <Ul> <Li> First place (the Gold medal): It is composed of silver of at least . 925 grade, plated with 6 grams of gold . </Li> <Li> Second place (the Silver medal): . 925 silver . </Li> <Li> Third place (the Bronze medal): It is 97.0% copper with 0.5% tin and 2.5% zinc; the metal value was about US $3 in 2010 . </Li> </Ul> </Li> <Li> Event details: The sport for which the medal has been awarded should be written on the medal </Li> </Ul> <Li> Recipients: The top three competitors receive medals </Li> <Li> Shape: Usually circular, featuring an attachment for a chain or ribbon </Li> <Li> Diameter: A minimum of 60 mm </Li>

Who makes the gold medals for the olympics