Step-by-step guide

Following these steps will ensure a proper fit

1. Warm up the hand, massage/bowl
2. Measure the MIDDLE FINGER
3. Measure the THUMB FLEXIBILITY
4. Measure FINGER and THUMB hole sizes
   

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Constants to fill out on the spec sheet

• Before starting the measurement, you can already write down some data on your spec sheet.
  1. Bowler Hand (Left or Right)
  2. Bridge of 3/8
  3. Lateral Pitches of 1/4 (middle) and 5/8 (ring)
  4. Ring Finger measurement will always be +1/8 from the span measured on the next step.

 

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Mark the bowler's hand with a pen

1. Mark the MIDDLE FINGER
   • Find and mark the bending point of the SECOND joint.
   • Measure 3/8 under the joint, draw a line.
   • Use this line for your measurement.
     

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Using the fitting tools

• BT Ball Fitter
• Innovative Fitting Ball