on demo days, for this case, ebonite will show case their latest
balls, and patrons can make use of this opportunity to try out
these new balls.
Basically, (correct me if i am wrong) all the balls are label
drilled, with most of the common span size and the thumb holes are
removable and custom-isable for all to test out the reaction of the
balls.
The lanes will FOC for usage.
Hope this info helps. 
