This item is for 102 new Double Fish 40+mm 3-star poly balls.
These new balls are made of new plastic material. The ball is slightly but visibly larger than the old 40mm cellular balls. It is also slightly slower and about 0.05 gram heavier than the old balls.
Double Fish ball is the official tournament ball for the National Collegiate Table Tennis Association. It is also I.T.T.F. approved for international competition.