The Abacus^® Gelliprene^® balls are made from soft, non-latex elastomer, each color representing a different firmness.

The purple balls are the softest, the green balls are our medium firmness, and the blue ball is the firmest.

The ball assembly can be configured using multiple ball sizes, with one or two balls per assembly. The nuts can be unscrewed for the various balls and spacers to be installed. The balls are manufactured with a 52mm diameter and 3 different durometers.

If ordering more than 4 balls at one time, please contact our customer service to ensure the best shipping rates.  Customer Service – [email protected]

Diameter Durometer 52 mm Purple 00-24 shore 52 mm Green 00-40 shore 52 mm Blue 00-50 shore

• Softest = purple
• Medium firm = green
• Hardest = blue