I have a question:
What are those numbers near the ittf symbol on tension rubbers
ect. like killerspin fortissimo or tenergy they have like a box (on rubber sheet saying Ittf approved 15-003 ex
rubber title
General
duke Unknown Asked 16 years ago
Alois Rosario Answered 16 years ago
Hi Sam,
As far as I can tell the first number is the manufacturers number. For example all the Butterfly rubbers will start with 14 - . The second number is dedicated to a particular number.
If anyone knows more please let us know.
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