Swimmers can improve the efficiency of their arm strokes with the Forearm Fulcrum Sr. by Finis. This is an excellent swim training aid as its unique design locks the wrist and forearm in place which forces the swimmer to focus on developing proper arm stroke technique. Novice swimmers will instantly learn proper technique while professional swimmers will be reminded of proper technique. The Forearm Fulcrum Sr. also uses padded rubber cushions for the hand and forearm for comfort. (Sr. is for adults and Jr. is for kids)