The house balls have different size finger holes however there is not an on-site pro shop for drilling holes. Waveland Bowl partners with Simon's shop closeby on Irving Park for the ball drilling, fitting etc.
Ball weights vary between 8-16 lbs and the hole sizes vary small, medium and large to make sure there is a ball for everyone.
There are different sizes holes for all the balls I wouldn't go there because floors are sticky a don't clean it up very well
There is a very large selection of house balls available. If you go at a slower time, you will most likely find a ball to fit you
I'm a small guy, and sometimes can't use the proper weight balls because the holes are too big.
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