Seed SD-01 The Jack | Subscription
Seed SD-01 The Jack | Subscription
Seed SD-01 The Jack | Subscription
Seed SD-01 The Jack | Subscription
Seed SD-01 The Jack | Subscription

Seed SD-01 The Jack | Subscription

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Helps keep you straight.

The Jack is Seed's take on an alignment device, designed to help improve your putting accuracy, alignment and stroke.

The two large side circles create a strong visual alignment aid, allowing you to more easily line the ball to the hole.

The circle device also provides an instant diagnostic tool for the putting stroke, swing path and strike.

A balanced and centred stroke will result in the ball rolling true and straight, with the circles creating a visual affirmation (straight, clean roll). An open or closed putter face, an overly inside or across the line stroke will all cause the circles to “wobble” after impact, indicating a less than perfect strike.

The off-centre roll provides immediate visual feedback regarding the stroke and path. If stroke is an issue, the golfer also can turn the ball 90° and visually see the skid, spin and roll characteristics of the ball from their stroke.

This can be very useful for teaching professionals or anyone who is videoing the putting action looking for more visual feedback.

In research conducted by Seed, 86% of golfers found improved results on 6ft putts by using The Jack over traditional single line alignment device.

The Jack alignment device is available on the SD-01 The Pro golf ball, White only.

Customer Reviews

Based on 36 reviews
John Daly (Milltown Malbay, IE)
Age: 72
Handicap: 20

Found it difficult at first to putt
But eventually got the feel

Frank Desmond (Cork, IE)
Age: 64
Handicap: 15

Very poor quality…..’hollow’ sound when struck. Sounds like a ‘dud’ ball. Would not purchase again.

Jonathan Furlong (Madrid, ES)
Age: 47
Handicap: 17

Excellent for alignment on the greens. Good feel off the tee and fairway.

Gary Williamson (Dublin, IE)
Age: 36
Handicap: 9
The Jack

Exellent for driving and putting alignment

B (Newtownards, GB)
Age: 54
Handicap: 22
An interesting concept….

Not yet tried on the course but great for using with the putting trainer.