SwingPerfect Golf Pendulum Putting Trainer. Your wrists are flipping. Your shoulder is rising. Your arc is different every time. You can't feel any of it — until this cord tells you. On every stroke.
 
"You can't feel a wrist flip — until this cord makes you feel every one."
"Same arc. Same speed. Same distance. The cord teaches your body what your brain keeps forgetting."
"Two cords. Three phases. One stroke. Fixed."
 
1. The cord feels every fault your hands can't. Wrap the strap across your shoulders. Clip the cord to your putter mid-shaft. The two cords form a V. Now putt. If your wrist flips at impact, one cord pulls tight. If your shoulder rises on the backswing, the tension goes uneven before you even hit the ball. You feel it immediately — not after reviewing video, not after your coach watches you for an hour. On that rep. That's the whole point.
 
2. Backswing, impact, follow-through — the cord monitors all three. Most putting problems happen in one of three places: the backswing (arc too short or long, shoulder rising), impact (wrists flipping, face closing), or follow-through (arc cutting off, elbow chicken-winging). The V-cord covers all three in one stroke. You don't need three separate drills. You need one cord and 20 putts.
 
3. Same arc = same distance. Every time. The reason your distance control is inconsistent is that your arc is inconsistent. Change the arc, change the speed, change the distance. The cord trains your body to repeat the same arc — not by thinking about it, but by feeling when it goes wrong. After a few sessions, your body starts to self-correct before you're even conscious of the error. That's how motor learning works. The cord accelerates it.
 
4. Works with your own putter. Motor pattern transfers to the course. The shaft clip (5 seconds to attach, fits most standard putter shafts ~0.9–1.1cm) connects to your actual putter — the one you play with on the course. That means every rep you do with the cord is training the exact motor pattern you will use on Saturday. There is no "switching back" from a training putter. What you train is what you take to the green.
 
5. Two cords beat one. Some putting cords have a single cord. They detect fault on one side only. The V-cord system has two, one from each shoulder. The moment the two sides go uneven, you know which shoulder rose, which wrist flipped, which elbow flared. One cord tells you something went wrong. Two cords tell you exactly where.
 
6. 97g. Fits in a side pocket. Use it anywhere. Strap: 60g. Cord: 37g. The full set weighs less than two golf balls. Roll it up and drop it in your bag. Practice on the mat at home, on the putting green before a round, in a hotel room. The cord does not care where you are. It just cares whether your arc is repeatable.
 
7. Adjustable strap — fits all body sizes without fuss. The elastic strap adjusts from 55.5 to 71.5cm. Put it on, tighten the buckle, you're done. No size selection, no fitting process. Works for every adult body type.