Simply put, if the Wrist Trainer clicks at the right moment, the correct technique was used. A complete instruction guide accompanies the Wrist Trainer to help users find those "right moments" to get on track to better tennis. To use, place the device over the top of your wrist with your palm facing down so the Tac-Tic metal insert is midway over the hand and the lower forearm. Hook the loop over your middle finger to secure into position and double loop it for smaller hand sizes. Another amazing innovation from Oncourt Offcourt.
The Tac-Tic Elbow Trainer works like the Wrist Trainer described above, except it guides players to the correct arm position with the elbow. Like the Wrist Trainer, the Tac Tic Elbow Trainer reinforces the right technique by clicking at the right moment. Includes detailed photo instructions by PTR and USPTA Master Pro Joe Dinoffer. To use, just line up the dot on the inside of the Elbow Trainer. Correctly placed, it should click every time you bend or straighten your arm. The Tac Tic Elbow Trainer works great for all strokes, including serves, goundstrokes, and volleys