The Four Minute Core Trainer – A handheld kinetic resistance trainer capable of providing total core workout
The Four Minute Core Trainer [SOURCE] is not just capable of providing total core workout anytime anywhere but at the same time capable of delivering the benefits of a full size gym devices because it simultaneously activates core and arm muscles. This core trainer allows the user to simply draw… Read More »The Four Minute Core Trainer – A handheld kinetic resistance trainer capable of providing total core workout