The Key to a Fast Butterfly: Timing Leave a Comment / 蝶式 / By hkswim Timing is everything in butterfly. You can have the per … The Key to a Fast Butterfly: Timing Read More »
3 Press and a Stroke Butterfly Drill Leave a Comment / 蝶式 / By hkswim The chest press is a very important part of the butterf … 3 Press and a Stroke Butterfly Drill Read More »
