At only 80% the weight of other similarly sized footballs and with a soft foamed rubber outer layer, these balls are easier to grip, throw and catch. The soft outer layer also helps reduce the fear associated with catching a traditional hard football.W8329001 is 11.5" long and has a girth of 21" (maximum diameter of 6.7" around the lacings).W8329002 is 10.5" long and has a girth of 19.25" (maximum diameter of 6.1" around the lacings).W8329002 is 10" long and has a girth of 18.75" (maximum diameter of 6.0" around the lacings).W8213001 is 11.5" long and has a girth of 21" (maximum diameter of 6.7" around the lacings).W8213002 is 10.5" long and has a girth of 19.25" (maximum diameter of 6.1" around the lacings).S&S Worldwide