Grave digger18 mei, 2015 in Mace by Dennis de Groot #mace #macetraining #gravediggers #workout #madmethods #unconventionaltools #unconventionalathlete #core #offset #ancient #strength #dsports #dutch #dutchfit #dutchfitness #instasport #instasport #smallgrouptraining #crosstraining #crossfit #outofthebox A photo posted by dennis (@dsportsnl) on May 18, 2015 at 1:43am PDT De gravedigger is een fullbody workout