The Putting Arc MS-3D is a stroke guide that trains the natural arc of your putting motion. Place it on the green, ride the heel or toe of your putter along the track, and build a repeatable stroke path based on the elliptical plane from your shoulders to the ball.
The design is mathematically proven — if your putter face stays square to the aim line and contacts the sweet spot, the ball tracks down the intended line every time. No hand manipulation required. Your hands, arms, and shoulders rotate as one unit, and the arc shape enforces correct path automatically.
Made in the USA, the MS-3D has been the top-selling putting arc for over 25 years. Used across PGA, LPGA, and Champions Tour circuits, plus NCAA and USGA amateur champions. Works with any putter type or length. The optional mirror add-on lets you verify eye position and face angle during setup.
Available in two configurations: MS-3D standalone, or MS-3D bundled with the alignment mirror for real-time visual feedback during every rep.
