Since Reball® came to the marketplace there have been many copies claiming to be Reball® or just as good at a fraction of the price. We at Reball® encourage all of you to research, there is ONLY ONE REBALL®. When purchasing Reballs® be sure to buy them from an authorized Reball® retailer. If you do not it is most likely not a genuine Reball®. Reballs® are available in bright Yellow or Pink available at your local dealer and Neon Green exclusively online. All Reballs® glow under black light. Reball® is sold in boxes of 500 balls but can be found in 100 round tubes. REBALL® accept no substitutions.