Received a pedometer, missing a 2.00mm sheet and had an extra 2.50mm sheet. I ask Mitutoyo for a replacement and three days later I get an email, I open it and there is an EMPTY bag from the pit gate. I don't know if this is a joke or a bug, but I'm really angry. I had confidence in the quality of Mitutoyo's products and service. But I will no longer recommend these products to my friends.