Hi, my father has a problem. Can you help?
When he was a kid he had an accident with his thumb. Now all those years later he still has problem with it. How? Well his thumb gets smaller after he throws a few times. So when he starts bowling his thumb hole is a bit to small but after he throws a few times, the hole is the small. After searching for a solution for months, we finally got one: A thumb insert with extra grip. The insert has a grey piece in it that gives more grip. It improved his game a lot ( 2 times 300 ). But now, we can't find those inserts anymore. Does anybody know a company or site where we can find them. Tnx!