High impact ABS side plate construction 80% steel rim weight reduced wobbleself correcting flight builds confidence Perfect implement for beginning and intermediate throwers Discus Selection Chart High School Girls High School Boys Range Rim Weight Range Rim Weight 100' to 125' 70% to 73% 100' to 130' 70% to 73% 120' to 150' 73% to 75% 125' to 150' 73% to 75% 140' to 160' 75% to 80% 145' to 160' 75% to 80% 150' to 165' 78% to 85% 155' to 170' 78% to 85% 160' or more 85% to 89% 165' to 180' 85% to 89% 175' to 190' 85% to 90% 190' or more 88% to 91% Discus Competition Specs Women, High School plus 1 kilo. High School Boys 16 kilo. CollegeMasters Men to age 49 2 kilo. Intl' Junior Men 19 Under 1.75 kilo. Men 50 59 1.5 kilo. Men 60 plus 1 kilo.