The Jayhawk Measuring Ball has been the premier fitting tool in the bowling industry for over 40 years. The Jayhawk Measuring Ball is the only fitting system that allows the bowler to feel a grip BEFORE a ball is drilled. The recently rewritten instruction manual helps you easily fit every type of bowler using the latest techniques developed by IBPSIA, including the Pie Chart Formula. Our new inserts are made of urethane and give the same feel as the ball.

• Set includes 24 interchangeable inserts for easy sizing
• Adjustable span
• Adjustable thumb and finger pitches
• Only ball on the market that allow customers to feel the entire fit
• Simple to operate
• One year warranty

Jayhawk Profesional Measuring Ball
Order #15-2000-10

• New colorized finger and thumb parts for easy use
• Complete set of 36 inserts machine cut for accuracy
• Includes 2 metal span rulers
• One year warranty

New case with Inserts Only
Order #15-2271

Jayhawk Oval Fitting System
Order #15-2281

The Jayhawk Oval Fitting system consists of the 36 most common sizes of Jayhawk Custom Ovals, along with detailed instructions and tips for drilling oval holes. The inserts fit into the Jayhawk Measuring Ball, so you can give your customer and yourself the comfort of knowing a ball will fit perfectly before you drill it.

• Set includes 36 inserts - for each size there are 3 inserts: .030, .060 & .090
• These inserts are machine cut for accuracy
• Fully adaptable to the Jayhawk Measuring Ball
• Set comes with an easy to use chart showing how to duplicate on your milling machine
• The first simple method for fitting & drilling oval holes!!