XRAY - Model racing cars

I can't exactly picture what are you're talking about. Is there any way to take a picture and post it?

First picture is of the inside of front most pin holder the part you see is where the metal plate goes if I had a spare to put in it would help you see easier but I dont so.. Second picture is a side view of same part & the 2 little humps you see sticking up are where the pins go through & how they wore or how they added material to themselves or how ever you want to say it.Like I said couldnt feel it do anything odd just tripped out how it did that,They were actually a bit more pronounced than that originally but my little girl was playing with it today.se if you can solve the mystery of the halloween hinge pin holder.

Mine looks exactly the same. I haven't had any issue...