http://www.all-for-tennis.com/242272/graphene-touch-speed-mp-2017-ten/head-graphene-touch-speed-mp-tennis-racquet-4-3-8.html YEARLY 2017-04-27 1 http://www.all-for-tennis.com/252541/graphene-touch-speed-mp-2017-ten/head-graphene-touch-speed-mp-tennis-racquet-4-3-8.html YEARLY 2017-05-09 1